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  1. Article ; Online: Probing the Fermi-LAT GeV Excess with Gravitational Waves.

    Calore, Francesca / Regimbau, Tania / Serpico, Pasquale Dario

    Physical review letters

    2019  Volume 122, Issue 8, Page(s) 81103

    Abstract: If the gamma-ray excess towards the inner Galaxy (GCE) detected in Fermi-LAT data is due to millisecond pulsars (MSPs), one expects an associated gravitational wave (GW) signal, whose intensity exceeds the disk MSP population emission by an order of ... ...

    Abstract If the gamma-ray excess towards the inner Galaxy (GCE) detected in Fermi-LAT data is due to millisecond pulsars (MSPs), one expects an associated gravitational wave (GW) signal, whose intensity exceeds the disk MSP population emission by an order of magnitude. We compute the expected GW counterpart of the bulge MSP population based on fits of the GCE, and estimate the sensitivity reach of current and future terrestrial GW detectors. The bounds on the average population ellipticity ϵ are competitive with the existing ones derived by LIGO/Virgo towards known MSPs. With a 10-yr data taking in current LIGO/Virgo configuration, one would detect a signal at the level ϵ≃10^{-7}, while ϵ≃10^{-8} would be attainable with a similar data taking period with a third generation GW detector. This sensitivity should be sufficient for crucial diagnostics on the GCE interpretation in terms of MSPs.
    Language English
    Publishing date 2019-04-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.122.081103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Digging Deeper: Observing Primordial Gravitational Waves below the Binary-Black-Hole-Produced Stochastic Background.

    Regimbau, T / Evans, M / Christensen, N / Katsavounidis, E / Sathyaprakash, B / Vitale, S

    Physical review letters

    2017  Volume 118, Issue 15, Page(s) 151105

    Abstract: The merger rate of black hole binaries inferred from the detections in the first Advanced LIGO science run implies that a stochastic background produced by a cosmological population of mergers will likely mask the primordial gravitational wave background. ...

    Abstract The merger rate of black hole binaries inferred from the detections in the first Advanced LIGO science run implies that a stochastic background produced by a cosmological population of mergers will likely mask the primordial gravitational wave background. Here we demonstrate that the next generation of ground-based detectors, such as the Einstein Telescope and Cosmic Explorer, will be able to observe binary black hole mergers throughout the Universe with sufficient efficiency that the confusion background can potentially be subtracted to observe the primordial background at the level of Ω_{GW}≃10^{-13} after 5 years of observation.
    Language English
    Publishing date 2017-04-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.118.151105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Parameter estimation in searches for the stochastic gravitational-wave background.

    Mandic, V / Thrane, E / Giampanis, S / Regimbau, T

    Physical review letters

    2012  Volume 109, Issue 17, Page(s) 171102

    Abstract: The stochastic gravitational-wave background (SGWB) is expected to arise from the superposition of many independent and unresolved gravitational-wave signals of either cosmological or astrophysical origin. The spectral content of the SGWB carries ... ...

    Abstract The stochastic gravitational-wave background (SGWB) is expected to arise from the superposition of many independent and unresolved gravitational-wave signals of either cosmological or astrophysical origin. The spectral content of the SGWB carries signatures of the physics that generated it. We present a Bayesian framework for estimating the parameters associated with different SGWB models using data from gravitational-wave detectors. We apply this technique to recent results from LIGO to produce the first simultaneous 95% confidence level limits on multiple parameters in generic power-law SGWB models and in SGWB models of compact binary coalescences. We also estimate the sensitivity of the upcoming second-generation detectors such as Advanced LIGO or Virgo to these models and demonstrate how SGWB measurements can be combined and compared with observations of individual compact binary coalescences in order to build confidence in the origin of an observed SGWB signal. In doing so, we demonstrate a novel means of differentiating between different sources of the SGWB.
    Language English
    Publishing date 2012-10-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.109.171102
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector.

    Acernese, F / Agathos, M / Ain, A / Albanesi, S / Alléné, C / Allocca, A / Amato, A / Amra, C / Andia, M / Andrade, T / Andres, N / Andrés-Carcasona, M / Andrić, T / Ansoldi, S / Antier, S / Apostolatos, T / Appavuravther, E Z / Arène, M / Arnaud, N /
    Assiduo, M / Melo, S Assis de Souza / Astone, P / Aubin, F / Babak, S / Badaracco, F / Bagnasco, S / Baird, J / Baka, T / Ballardin, G / Baltus, G / Banerjee, B / Barneo, P / Barone, F / Barsuglia, M / Barta, D / Basti, A / Bawaj, M / Bazzan, M / Beirnaert, F / Bejger, M / Benedetto, V / Berbel, M / Bernuzzi, S / Bersanetti, D / Bertolini, A / Bhardwaj, U / Bianchi, A / Bilicki, M / Bini, S / Bischi, M / Bitossi, M / Bizouard, M-A / Bobba, F / Boër, M / Bogaert, G / Boileau, G / Boldrini, M / Bonavena, L D / Bondarescu, R / Bondu, F / Bonnand, R / Boschi, V / Boudart, V / Bouffanais, Y / Bozzi, A / Bradaschia, C / Braglia, M / Branchesi, M / Breschi, M / Briant, T / Brillet, A / Brooks, J / Bruno, G / Bucci, F / Bulashenko, O / Bulik, T / Bulten, H J / Buscicchio, R / Buskulic, D / Buy, C / Cabras, G / Cabrita, R / Cagnoli, G / Calloni, E / Canepa, M / Santoro, G Caneva / Cannavacciuolo, M / Capocasa, E / Carapella, G / Carbognani, F / Carpinelli, M / Carullo, G / Diaz, J Casanueva / Casentini, C / Caudill, S / Cavalieri, R / Cella, G / Cerdá-Durán, P / Cesarini, E / Chaibi, W / Chanial, P / Chassande-Mottin, E / Chaty, S / Chessa, P / Chiadini, F / Chiarini, G / Chierici, R / Chincarini, A / Chiofalo, M L / Chiummo, A / Christensen, N / Chua, S / Ciani, G / Ciecielag, P / Cieślar, M / Cifaldi, M / Ciolfi, R / Clesse, S / Cleva, F / Coccia, E / Codazzo, E / Cohadon, P-F / Colombo, A / Colpi, M / Conti, L / Cordero-Carrión, I / Corezzi, S / Cortese, S / Coulon, J-P / Coupechoux, J-F / Croquette, M / Cudell, J R / Cuoco, E / Curyło, M / Dabadie, P / Canton, T Dal / Dall'Osso, S / Dálya, G / D'Angelo, B / Dangoisse, G / Danilishin, S / D'Antonio, S / Dattilo, V / Davier, M / Degallaix, J / De Laurentis, M / Deléglise, S / De Lillo, F / Dell'Aquila, D / Del Pozzo, W / De Matteis, F / Depasse, A / De Pietri, R / De Rosa, R / De Rossi, C / De Simone, R / Di Fiore, L / Di Giorgio, C / Di Giovanni, F / Di Giovanni, M / Di Girolamo, T / Diksha, D / Di Lieto, A / Di Michele, A / Ding, J / Di Pace, S / Di Palma, I / Di Renzo, F / D'Onofrio, L / Dooney, T / Dorosh, O / Drago, M / Ducoin, J-G / Dupletsa, U / Durante, O / D'Urso, D / Duverne, P-A / Eisenmann, M / Errico, L / Estevez, D / Fabrizi, F / Faedi, F / Fafone, V / Favaro, G / Fays, M / Fenyvesi, E / Ferrante, I / Fidecaro, F / Figura, P / Fiori, A / Fiori, I / Fittipaldi, R / Fiumara, V / Flaminio, R / Font, J A / Frasca, S / Frasconi, F / Freise, A / Freitas, O / Fronzé, G G / Gadre, B / Gamba, R / Garaventa, B / Garcia-Bellido, J / Gargiulo, J / Garufi, F / Gasbarra, C / Gemme, G / Gennai, A / Ghosh, Archisman / Giacoppo, L / Giri, P / Gissi, F / Gkaitatzis, S / Glotin, F / Goncharov, B / Gosselin, M / Gouaty, R / Grado, A / Granata, M / Granata, V / Greco, G / Grignani, G / Grimaldi, A / Guerra, D / Guetta, D / Guidi, G M / Gulminelli, F / Guo, Y / Gupta, P / Gutierrez, N / Haegel, L / Halim, O / Hannuksela, O / Harder, T / Haris, K / Harmark, T / Harms, J / Haskell, B / Heidmann, A / Heitmann, H / Hello, P / Hemming, G / Hennes, E / Hennig, J-S / Hennig, M / Hild, S / Hofman, D / Holland, N A / Hui, V / Iandolo, G A / Idzkowski, B / Iess, A / Iorio, G / Iosif, P / Jacqmin, T / Jacquet, P-E / Janquart, J / Janssens, K / Jaraba, S / Jaranowski, P / Jasal, P / Juste, V / Kalaghatgi, C / Karathanasis, C / Katsanevas, S / Kéfélian, F / Koekoek, G / Koley, S / Kolstein, M / Kranzhoff, S L / Królak, A / Kuijer, P / Kuroyanagi, S / Lagabbe, P / Laghi, D / Lalleman, M / Lamberts, A / La Rana, A / La Rosa, I / Lartaux-Vollard, A / Lazzaro, C / Leaci, P / Lemaître, A / Lenti, M / Leonova, E / Lequime, M / Leroy, N / Letendre, N / Lethuillier, M / Leyde, K / Linde, F / London, L / Longo, A / Portilla, M Lopez / Lorenzini, M / Loriette, V / Losurdo, G / Lumaca, D / Macquet, A / Magazzù, C / Maggiore, R / Magnozzi, M / Majorana, E / Man, N / Mangano, V / Mantovani, M / Mapelli, M / Marchesoni, F / Pina, D Marín / Marion, F / Marquina, A / Marsat, S / Martelli, F / Martinez, M / Martinez, V / Masserot, A / Mastrodicasa, M / Mastrogiovanni, S / Meijer, Q / Menendez-Vazquez, A / Mereni, L / Merzougui, M / Miani, A / Michel, C / Miller, A / Miller, B / Milotti, E / Minenkov, Y / Mir, Ll M / Miravet-Tenés, M / Mitchell, A L / Mondal, C / Montani, M / Morawski, F / Morras, G / Moscatello, A / Mours, B / Mow-Lowry, C M / Msihid, E / Muciaccia, F / Mukherjee, Suvodip / Nagar, A / Napolano, V / Nardecchia, I / Narola, H / Naticchioni, L / Neilson, J / Nesseris, S / Nguyen, C / Nieradka, G / Nissanke, S / Nitoglia, E / Nocera, F / Novak, J / No Siles, J F Nu / Oertel, M / Oganesyan, G / Oliveri, R / Orselli, M / Palomba, C / Pang, P T H / Pannarale, F / Paoletti, F / Paoli, A / Paolone, A / Pappas, G / Parisi, A / Pascucci, D / Pasqualetti, A / Passaquieti, R / Passuello, D / Patricelli, B / Pedurand, R / Pegna, R / Pegoraro, M / Perego, A / Pereira, A / Périgois, C / Perreca, A / Perriès, S / Perry, J W / Pesios, D / Petrillo, C / Phukon, K S / Piccinni, O J / Pichot, M / Piendibene, M / Piergiovanni, F / Pierini, L / Pierra, G / Pierro, V / Pillant, G / Pillas, M / Pilo, F / Pinard, L / Pinto, I M / Pinto, M / Piotrzkowski, K / Placidi, A / Placidi, E / Plastino, W / Poggiani, R / Polini, E / Porcelli, E / Portell, J / Porter, E K / Poulton, R / Pracchia, M / Pradier, T / Principe, M / Prodi, G A / Prosposito, P / Puecher, A / Punturo, M / Puosi, F / Puppo, P / Raaijmakers, G / Radulesco, N / Rapagnani, P / Razzano, M / Regimbau, T / Rei, L / Rettegno, P / Revenu, B / Reza, A / Rezaei, A S / Ricci, F / Rinaldi, S / Robinet, F / Rocchi, A / Rolland, L / Romanelli, M / Romano, R / Romero, A / Ronchini, S / Rosa, L / Rosińska, D / Roy, S / Rozza, D / Ruggi, P / Morales, E Ruiz / Saffarieh, P / Salafia, O S / Salconi, L / Salemi, F / Sallé, M / Samajdar, A / Sanchis-Gual, N / Sanuy, A / Sasli, A / Sassi, P / Sassolas, B / Sayah, S / Schmidt, S / Seglar-Arroyo, M / Sentenac, D / Sequino, V / Servignat, G / Setyawati, Y / Shcheblanov, N S / Sieniawska, M / Silenzi, L / Singh, N / Singha, A / Sipala, V / Soldateschi, J / Sordini, V / Sorrentino, F / Sorrentino, N / Soulard, R / Spagnuolo, V / Spera, M / Spinicelli, P / Stachie, C / Steer, D A / Steinlechner, J / Steinlechner, S / Stergioulas, N / Stratta, G / Suchenek, M / Sur, A / Suresh, J / Swinkels, B L / Syx, A / Szewczyk, P / Tacca, M / Tamanini, N / Tanasijczuk, A J / Martín, E N Tapia San / Taranto, C / Tonelli, M / Torres-Forné, A / E Melo, I Tosta / Tournefier, E / Trapananti, A / Travasso, F / Trenado, J / Tringali, M C / Troiano, L / Trovato, A / Trozzo, L / Tsang, K W / Turbang, K / Turconi, M / Turski, C / Ubach, H / Utina, A / Valentini, M / Vallero, S / van Bakel, N / van Beuzekom, M / van Dael, M / van den Brand, J F J / Van Den Broeck, C / van der Sluys, M / Van de Walle, A / van Dongen, J / van Haevermaet, H / van Heijningen, J V / van Ranst, Z / van Remortel, N / Vardaro, M / Vasúth, M / Vedovato, G / Verdier, P / Verkindt, D / Verma, P / Vetrano, F / Viceré, A / Vinet, J-Y / Viret, S / Virtuoso, A / Vocca, H / Walet, R C / Was, M / Yadav, N / Zadrożny, A / Zelenova, T / Zendri, J-P / Zhao, Y / Zerrad, M / Vahlbruch, H / Mehmet, M / Lück, H / Danzmann, K

    Physical review letters

    2023  Volume 131, Issue 4, Page(s) 41403

    Abstract: In this Letter, we present the design and performance of the frequency-dependent squeezed vacuum source that will be used for the broadband quantum noise reduction of the Advanced Virgo Plus gravitational-wave detector in the upcoming observation run. ... ...

    Abstract In this Letter, we present the design and performance of the frequency-dependent squeezed vacuum source that will be used for the broadband quantum noise reduction of the Advanced Virgo Plus gravitational-wave detector in the upcoming observation run. The frequency-dependent squeezed field is generated by a phase rotation of a frequency-independent squeezed state through a 285 m long, high-finesse, near-detuned optical resonator. With about 8.5 dB of generated squeezing, up to 5.6 dB of quantum noise suppression has been measured at high frequency while close to the filter cavity resonance frequency, the intracavity losses limit this value to about 2 dB. Frequency-dependent squeezing is produced with a rotation frequency stability of about 6 Hz rms, which is maintained over the long term. The achieved results fulfill the frequency dependent squeezed vacuum source requirements for Advanced Virgo Plus. With the current squeezing source, considering also the estimated squeezing degradation induced by the interferometer, we expect a reduction of the quantum shot noise and radiation pressure noise of up to 4.5 dB and 2 dB, respectively.
    Language English
    Publishing date 2023-07-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.041403
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  5. Article ; Online: Quantum Backaction on kg-Scale Mirrors: Observation of Radiation Pressure Noise in the Advanced Virgo Detector.

    Acernese, F / Agathos, M / Aiello, L / Ain, A / Allocca, A / Amato, A / Ansoldi, S / Antier, S / Arène, M / Arnaud, N / Ascenzi, S / Astone, P / Aubin, F / Babak, S / Badaracco, F / Bader, M K M / Bagnasco, S / Baird, J / Ballardin, G /
    Baltus, G / Barbieri, C / Barneo, P / Barone, F / Barsuglia, M / Barta, D / Basti, A / Bawaj, M / Bazzan, M / Bejger, M / Belahcene, I / Bernuzzi, S / Bersanetti, D / Bertolini, A / Bischi, M / Bitossi, M / Bizouard, M-A / Blanch, O / Bobba, F / Boer, M / Bogaert, G / Boldrini, M / Bondu, F / Bonnand, R / Boom, B A / Boschi, V / Boudart, V / Bouffanais, Y / Bozzi, A / Bradaschia, C / Branchesi, M / Breschi, M / Briant, T / Brighenti, F / Brillet, A / Brooks, J / Bruno, G / Bulik, T / Bulten, H J / Buskulic, D / Cagnoli, G / Calloni, E / Canepa, M / Carapella, G / Carbognani, F / Carpinelli, M / Carullo, G / Diaz, J Casanueva / Casentini, C / Caudill, S / Cavalier, F / Cavalieri, R / Cella, G / Cerdá-Durán, P / Cesarini, E / Chaibi, W / Chanial, P / Chassande-Mottin, E / Chiadini, F / Chierici, R / Chincarini, A / Chiummo, A / Christensen, N / Chua, S / Ciani, G / Ciecielag, P / Cieślar, M / Cifaldi, M / Ciolfi, R / Cipriano, F / Cirone, A / Clesse, S / Cleva, F / Coccia, E / Cohadon, P-F / Cohen, D E / Colpi, M / Conti, L / Cordero-Carrión, I / Corezzi, S / Corre, D / Cortese, S / Coulon, J-P / Croquette, M / Cudell, J R / Cuoco, E / Curylo, M / D'Angelo, B / D'Antonio, S / D'Onofrio, L / D'Urso, D / Canton, T Dal / Dattilo, V / Davier, M / De Laurentis, M / De Matteis, F / De Pietri, R / De Rosa, R / De Rossi, C / Degallaix, J / Del Pozzo, W / Deléglise, S / Depasse, A / Di Fiore, L / Di Giorgio, C / Di Giovanni, F / Di Giovanni, M / Di Girolamo, T / Di Lieto, A / Di Pace, S / Di Palma, I / Di Renzo, F / Dietrich, T / Drago, M / Ducoin, J-G / Durante, O / Duverne, P-A / Eisenmann, M / Errico, L / Estevez, D / Fafone, V / Farinon, S / Fays, M / Feng, F / Fenyvesi, E / Ferrante, I / Fidecaro, F / Figura, P / Fiori, I / Fiorucci, D / Fittipaldi, R / Fiumara, V / Flaminio, R / Font, J A / Fournier, J-D / Frasca, S / Frasconi, F / Frey, V / Fronzé, G G / Gamba, R / Garaventa, B / Garufi, F / Gemme, G / Gennai, A / Ghosh, Archisman / Giacomazzo, B / Giacoppo, L / Giri, P / Gosselin, M / Gouaty, R / Grado, A / Granata, M / Granata, V / Greco, G / Grignani, G / Grimaldi, A / Grimm, S J / Gruning, P / Guidi, G M / Guixé, G / Guo, Y / Gupta, P / Haegel, L / Halim, O / Hannuksela, O / Harder, T / Haris, K / Harms, J / Heidmann, A / Heitmann, H / Hello, P / Hemming, G / Hennes, E / Hofman, D / Hui, V / Idzkowski, B / Iess, A / Intini, G / Jacqmin, T / Janssens, K / Jaranowski, P / Jonker, R J G / Karathanasis, C / Katsanevas, S / Kéfélian, F / Khan, I / Khetan, N / Koekoek, G / Koley, S / Kolstein, M / Królak, A / La Rosa, I / Laghi, D / Lamberts, A / Lartaux-Vollard, A / Lazzaro, C / Leaci, P / Leroy, N / Letendre, N / Linde, F / Llorens-Monteagudo, M / Longo, A / Lorenzini, M / Loriette, V / Losurdo, G / Lumaca, D / Macquet, A / Magazzù, C / Majorana, E / Maksimovic, I / Man, N / Mangano, V / Mantovani, M / Mapelli, M / Marchesoni, F / Marion, F / Marquina, A / Marsat, S / Martelli, F / Martinez, M / Martinez, V / Masserot, A / Mastrogiovanni, S / Menendez-Vazquez, A / Mereni, L / Merzougui, M / Metzdorff, R / Miani, A / Michel, C / Milano, L / Miller, A / Milotti, E / Minazzoli, O / Minenkov, Y / Mir, Ll M / Montani, M / Morawski, F / Mours, B / Muciaccia, F / Nagar, A / Nardecchia, I / Naticchioni, L / Neilson, J / Nelemans, G / Nguyen, C / Nissanke, S / Nocera, F / Oganesyan, G / Olivetto, C / Pagano, G / Pagliaroli, G / Palomba, C / Pang, T H / Pannarale, F / Paoletti, F / Paoli, A / Paolone, A / Pascucci, D / Pasqualetti, A / Passaquieti, R / Passuello, D / Patricelli, B / Pegoraro, M / Perego, A / Périgois, C / Perreca, A / Perriès, S / Phukon, K S / Piccinni, O J / Pichot, M / Piendibene, M / Piergiovanni, F / Pierini, L / Pierro, V / Pillant, G / Pilo, F / Pinard, L / Pinto, I M / Piotrzkowski, K / Placidi, E / Plastino, W / Poggiani, R / Polini, E / Popolizio, P / Porter, E K / Pracchia, M / Principe, M / Prodi, G A / Prosposito, P / Puecher, A / Punturo, M / Puosi, F / Puppo, P / Raaijmakers, G / Radulesco, N / Rapagnani, P / Razzano, M / Regimbau, T / Rei, L / Rettegno, P / Ricci, F / Riemenschneider, G / Robinet, F / Rocchi, A / Rolland, L / Romanelli, M / Romano, R / Romero, A / Ronchini, S / Rosińska, D / Ruggi, P / Salafia, O S / Salconi, L / Samajdar, A / Sanchis-Gual, N / Santos, E / Sassolas, B / Sauter, O / Sayah, S / Seglar-Arroyo, M / Sentenac, D / Sequino, V / Sharma, A / Sieniawska, M / Singh, N / Singhal, A / Sipala, V / Sordini, V / Sorrentino, F / Sorrentino, N / Soulard, R / Spera, M / Stachie, C / Steer, D A / Stratta, G / Sur, A / Swinkels, B L / Tacca, M / Tanasijczuk, A J / Martin, E N Tapia San / Tonelli, M / Torres-Forné, A / Tosta E Melo, I / Trapananti, A / Travasso, F / Tringali, M C / Trovato, A / Tsang, K W / Turconi, M / Valentini, M / van Bakel, N / van Beuzekom, M / van den Brand, J F J / Van Den Broeck, C / van der Schaaf, L / Vardaro, M / Vasúth, M / Vedovato, G / Verkindt, D / Vetrano, F / Viceré, A / Vinet, J-Y / Vocca, H / Walet, R C / Was, M / Zadrożny, A / Zelenova, T / Zendri, J-P / Mehmet, M / Vahlbruch, H / Lück, H / Danzmann, K

    Physical review letters

    2020  Volume 125, Issue 13, Page(s) 131101

    Abstract: The quantum radiation pressure and the quantum shot noise in laser-interferometric gravitational wave detectors constitute a macroscopic manifestation of the Heisenberg inequality. If quantum shot noise can be easily observed, the observation of quantum ... ...

    Abstract The quantum radiation pressure and the quantum shot noise in laser-interferometric gravitational wave detectors constitute a macroscopic manifestation of the Heisenberg inequality. If quantum shot noise can be easily observed, the observation of quantum radiation pressure noise has been elusive, so far, due to the technical noise competing with quantum effects. Here, we discuss the evidence of quantum radiation pressure noise in the Advanced Virgo gravitational wave detector. In our experiment, we inject squeezed vacuum states of light into the interferometer in order to manipulate the quantum backaction on the 42 kg mirrors and observe the corresponding quantum noise driven displacement at frequencies between 30 and 70 Hz. The experimental data, obtained in various interferometer configurations, is tested against the Advanced Virgo detector quantum noise model which confirmed the measured magnitude of quantum radiation pressure noise.
    Language English
    Publishing date 2020-10-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.125.131101
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  6. Article ; Online: Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light.

    Acernese, F / Agathos, M / Aiello, L / Allocca, A / Amato, A / Ansoldi, S / Antier, S / Arène, M / Arnaud, N / Ascenzi, S / Astone, P / Aubin, F / Babak, S / Bacon, P / Badaracco, F / Bader, M K M / Baird, J / Baldaccini, F / Ballardin, G /
    Baltus, G / Barbieri, C / Barneo, P / Barone, F / Barsuglia, M / Barta, D / Basti, A / Bawaj, M / Bazzan, M / Bejger, M / Belahcene, I / Bernuzzi, S / Bersanetti, D / Bertolini, A / Bischi, M / Bitossi, M / Bizouard, M A / Bobba, F / Boer, M / Bogaert, G / Bondu, F / Bonnand, R / Boom, B A / Boschi, V / Bouffanais, Y / Bozzi, A / Bradaschia, C / Branchesi, M / Breschi, M / Briant, T / Brighenti, F / Brillet, A / Brooks, J / Bruno, G / Bulik, T / Bulten, H J / Buskulic, D / Cagnoli, G / Calloni, E / Canepa, M / Carapella, G / Carbognani, F / Carullo, G / Casanueva Diaz, J / Casentini, C / Castañeda, J / Caudill, S / Cavalier, F / Cavalieri, R / Cella, G / Cerdá-Durán, P / Cesarini, E / Chaibi, O / Chassande-Mottin, E / Chiadini, F / Chierici, R / Chincarini, A / Chiummo, A / Christensen, N / Chua, S / Ciani, G / Ciecielag, P / Cieślar, M / Ciolfi, R / Cipriano, F / Cirone, A / Clesse, S / Cleva, F / Coccia, E / Cohadon, P-F / Cohen, D / Colpi, M / Conti, L / Cordero-Carrión, I / Corezzi, S / Corre, D / Cortese, S / Coulon, J-P / Croquette, M / Cudell, J-R / Cuoco, E / Curylo, M / D'Angelo, B / D'Antonio, S / Dattilo, V / Davier, M / Degallaix, J / De Laurentis, M / Deléglise, S / Del Pozzo, W / De Pietri, R / De Rosa, R / De Rossi, C / Dietrich, T / Di Fiore, L / Di Giorgio, C / Di Giovanni, F / Di Giovanni, M / Di Girolamo, T / Di Lieto, A / Di Pace, S / Di Palma, I / Di Renzo, F / Drago, M / Ducoin, J-G / Durante, O / D'Urso, D / Eisenmann, M / Errico, L / Estevez, D / Fafone, V / Farinon, S / Feng, F / Fenyvesi, E / Ferrante, I / Fidecaro, F / Fiori, I / Fiorucci, D / Fittipaldi, R / Fiumara, V / Flaminio, R / Font, J A / Fournier, J-D / Frasca, S / Frasconi, F / Frey, V / Fronzè, G / Garufi, F / Gemme, G / Genin, E / Gennai, A / Ghosh, Archisman / Giacomazzo, B / Gosselin, M / Gouaty, R / Grado, A / Granata, M / Greco, G / Grignani, G / Grimaldi, A / Grimm, S J / Gruning, P / Guidi, G M / Guixé, G / Guo, Y / Gupta, P / Halim, O / Harder, T / Harms, J / Heidmann, A / Heitmann, H / Hello, P / Hemming, G / Hennes, E / Hinderer, T / Hofman, D / Huet, D / Hui, V / Idzkowski, B / Iess, A / Intini, G / Isac, J-M / Jacqmin, T / Jaranowski, P / Jonker, R J G / Katsanevas, S / Kéfélian, F / Khan, I / Khetan, N / Koekoek, G / Koley, S / Królak, A / Kutynia, A / Laghi, D / Lamberts, A / La Rosa, I / Lartaux-Vollard, A / Lazzaro, C / Leaci, P / Leroy, N / Letendre, N / Linde, F / Llorens-Monteagudo, M / Longo, A / Lorenzini, M / Loriette, V / Losurdo, G / Lumaca, D / Macquet, A / Majorana, E / Maksimovic, I / Man, N / Mangano, V / Mantovani, M / Mapelli, M / Marchesoni, F / Marion, F / Marquina, A / Marsat, S / Martelli, F / Martinez, V / Masserot, A / Mastrogiovanni, S / Mejuto Villa, E / Mereni, L / Merzougui, M / Metzdorff, R / Miani, A / Michel, C / Milano, L / Miller, A / Milotti, E / Minazzoli, O / Minenkov, Y / Montani, M / Morawski, F / Mours, B / Muciaccia, F / Nagar, A / Nardecchia, I / Naticchioni, L / Neilson, J / Nelemans, G / Nguyen, C / Nichols, D / Nissanke, S / Nocera, F / Oganesyan, G / Olivetto, C / Pagano, G / Pagliaroli, G / Palomba, C / Pang, P T H / Pannarale, F / Paoletti, F / Paoli, A / Pascucci, D / Pasqualetti, A / Passaquieti, R / Passuello, D / Patricelli, B / Perego, A / Pegoraro, M / Périgois, C / Perreca, A / Perriès, S / Phukon, K S / Piccinni, O J / Pichot, M / Piendibene, M / Piergiovanni, F / Pierro, V / Pillant, G / Pinard, L / Pinto, I M / Piotrzkowski, K / Plastino, W / Poggiani, R / Popolizio, P / Porter, E K / Prevedelli, M / Principe, M / Prodi, G A / Punturo, M / Puppo, P / Raaijmakers, G / Radulesco, N / Rapagnani, P / Razzano, M / Regimbau, T / Rei, L / Rettegno, P / Ricci, F / Riemenschneider, G / Robinet, F / Rocchi, A / Rolland, L / Romanelli, M / Romano, R / Rosińska, D / Ruggi, P / Salafia, O S / Salconi, L / Samajdar, A / Sanchis-Gual, N / Santos, E / Sassolas, B / Sauter, O / Sayah, S / Sentenac, D / Sequino, V / Sharma, A / Sieniawska, M / Singh, N / Singhal, A / Sipala, V / Sordini, V / Sorrentino, F / Spera, M / Stachie, C / Steer, D A / Stratta, G / Sur, A / Swinkels, B L / Tacca, M / Tanasijczuk, A J / Tapia San Martin, E N / Tiwari, S / Tonelli, M / Torres-Forné, A / Tosta E Melo, I / Travasso, F / Tringali, M C / Trovato, A / Tsang, K W / Turconi, M / Valentini, M / van Bakel, N / van Beuzekom, M / van den Brand, J F J / Van Den Broeck, C / van der Schaaf, L / Vardaro, M / Vasúth, M / Vedovato, G / Verkindt, D / Vetrano, F / Viceré, A / Vinet, J-Y / Vocca, H / Walet, R / Was, M / Zadrożny, A / Zelenova, T / Zendri, J-P / Vahlbruch, Henning / Mehmet, Moritz / Lück, Harald / Danzmann, Karsten

    Physical review letters

    2019  Volume 123, Issue 23, Page(s) 231108

    Abstract: Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of light into the interferometer's ... ...

    Abstract Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of light into the interferometer's dark port. Here, we report on the successful application of this quantum technology to improve the shot noise limited sensitivity of the Advanced Virgo gravitational-wave detector. A sensitivity enhancement of up to 3.2±0.1  dB beyond the shot noise limit is achieved. This nonclassical improvement corresponds to a 5%-8% increase of the binary neutron star horizon. The squeezing injection was fully automated and over the first 5 months of the third joint LIGO-Virgo observation run O3 squeezing was applied for more than 99% of the science time. During this period several gravitational-wave candidates have been recorded.
    Language English
    Publishing date 2019-12-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.123.231108
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: In-vacuum optical isolation changes by heating in a Faraday isolator.

    Acernese, Fausto / Alshourbagy, Mohamed / Amico, Paolo / Antonucci, Federica / Aoudia, S / Astone, P / Avino, Saverio / Ballardin, G / Baggio, L / Barone, Fabrizio / Barsotti, Lisa / Barsuglia, Matteo / Bauer, Th S / Bigotta, Stefano / Birindelli, Simona / Bizouard, Marie-Anne / Boccara, Albert-Claude / Bondu, François / Bosi, Leone /
    Braccini, Stefano / Bradaschia, Carlo / Brillet, Alain / Brisson, Violette / Buskulic, Damir / Cagnoli, G / Calloni, Enrico / Campagna, Enrico / Carbognani, Franco / Carbone, L / Cavalier, Fabien / Cavalieri, R / Cella, G / Cesarini, E / Chassande-Mottin, E / Chatterji, S / Cleva, F / Coccia, E / Corda, C / Corsi, A / Cottone, F / Coulon, J-P / Cuoco, E / D'Antonio, S / Dari, A / Dattilo, V / Davier, M / De Rosa, R / Del Prete, M / Di Fiore, L / Di Lieto, A / Di Paolo Emilio, M / Di Virgilio, A / Evans, M / Fafone, V / Ferrante, I / Fidecaro, F / Fiori, I / Flaminio, R / Fournier, J-D / Frasca, S / Frasconi, F / Gammaitoni, L / Garufi, F / Genin, E / Gennai, A / Giazotto, A / Giordano, L / Granata, V / Greverie, C / Grosjean, D / Guidi, G / Hamdani, S / Hebri, S / Heitmann, H / Hello, P / Huet, D / La Penna, P / Laval, M / Leroy, N / Letendre, N / Lopez, B / Lorenzini, M / Loriette, V / Losurdo, G / Mackowski, J-M / Majorana, E / Man, N / Mantovani, M / Marchesoni, F / Marion, F / Marque, J / Martelli, F / Masserot, A / Menzinger, F / Milano, L / Minenkov, Y / Moins, C / Morgado, N / Mosca, S / Mours, B / Neri, I / Nocera, F / Pagliaroli, G / Palomba, C / Paoletti, F / Pardi, S / Pasqualetti, A / Passaquieti, R / Passuello, D / Persichetti, G / Piergiovanni, F / Pinard, L / Poggiani, R / Punturo, M / Puppo, P / Rabaste, O / Rapagnani, P / Regimbau, T / Remillieux, A / Ricci, F / Ricciardi, I / Rocchi, A / Rolland, L / Romano, R / Ruggi, P / Russo, G / Sentenac, D / Solimeno, S / Swinkels, B L / Tarallo, M / Terenzi, R / Toncelli, A / Tonelli, M / Tournefier, E / Travasso, F / Vajente, G / van den Brand, J F J / van der Putten, S / Verkindt, D / Vetrano, F / Viceré, A / Vinet, J-Y / Vocca, H / Yvert, M

    Applied optics

    2008  Volume 47, Issue 31, Page(s) 5853–5861

    Abstract: We describe a model evaluating changes in the optical isolation of a Faraday isolator when passing from air to vacuum in terms of different thermal effects in the crystal. The changes are particularly significant in the crystal thermal lensing ( ... ...

    Abstract We describe a model evaluating changes in the optical isolation of a Faraday isolator when passing from air to vacuum in terms of different thermal effects in the crystal. The changes are particularly significant in the crystal thermal lensing (refraction index and thermal expansion) and in its Verdet constant and can be ascribed to the less efficient convection cooling of the magneto-optic crystal of the Faraday isolator. An isolation decrease by a factor of 10 is experimentally observed in a Faraday isolator that is used in a gravitational wave experiment (Virgo) with a 10 W input laser when going from air to vacuum. A finite element model simulation reproduces with a great accuracy the experimental data measured on Virgo and on a test bench. A first set of measurements of the thermal lensing has been used to characterize the losses of the crystal, which depend on the sample. The isolation factor measured on Virgo confirms the simulation model and the absorption losses of 0.0016 +/- 0.0002/cm for the TGG magneto-optic crystal used in the Faraday isolator.
    Language English
    Publishing date 2008-09-25
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/ao.47.005853
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A state observer for the Virgo inverted pendulum.

    Accadia, T / Acernese, F / Astone, P / Ballardin, G / Barone, F / Barsuglia, M / Basti, A / Bauer, Th S / Bebronne, M / Beker, M G / Belletoile, A / Bitossi, M / Bizouard, M A / Blom, M / Bondu, F / Bonelli, L / Bonnand, R / Boschi, V / Bosi, L /
    Bouhou, B / Braccini, S / Bradaschia, C / Branchesi, M / Briant, T / Brillet, A / Brisson, V / Bulik, T / Bulten, H J / Buskulic, D / Buy, C / Cagnoli, G / Calloni, E / Canuel, B / Carbognani, F / Cavalier, F / Cavalieri, R / Cella, G / Cesarini, E / Chaibi, O / Chassande-Mottin, E / Chincarini, A / Chiummo, A / Cleva, F / Coccia, E / Cohadon, P-F / Colacino, C N / Colas, J / Colla, A / Colombini, M / Conte, A / Corsi, A / Coulon, J-P / Cuoco, E / D' Antonio, S / Dattilo, V / Davier, M / Day, R / De Rosa, R / Debreczeni, G / Del Pozzo, W / del Prete, M / Di Fiore, L / Di Lieto, A / Di Paolo Emilio, M / Di Virgilio, A / Dietz, A / Drago, M / Endroczi, G / Fafone, V / Ferrante, I / Fidecaro, F / Fiori, I / Flaminio, R / Forte, L A / Fournier, J-D / Franc, J / Frasca, S / Frasconi, F / Galimberti, M / Gammaitoni, L / Garufi, F / Gáspár, M E / Gemme, G / Genin, E / Gennai, A / Giazotto, A / Gouaty, R / Granata, M / Greverie, C / Guidi, G M / Hayau, J-F / Heidmann, A / Heitmann, H / Hello, P / Jaranowski, P / Kowalska, I / Królak, A / Leroy, N / Letendre, N / Li, T G F / Liguori, N / Lorenzini, M / Loriette, V / Losurdo, G / Majorana, E / Maksimovic, I / Man, N / Mantovani, M / Marchesoni, F / Marion, F / Marque, J / Martelli, F / Masserot, A / Michel, C / Milano, L / Minenkov, Y / Mohan, M / Morgado, N / Morgia, A / Mours, B / Naticchioni, L / Nocera, F / Pagliaroli, G / Palladino, L / Palomba, C / Paoletti, F / Parisi, M / Pasqualetti, A / Passaquieti, R / Passuello, D / Persichetti, G / Piergiovanni, F / Pietka, M / Pinard, L / Poggiani, R / Prato, M / Prodi, G A / Punturo, M / Puppo, P / Rabeling, D S / Rácz, I / Rapagnani, P / Re, V / Regimbau, T / Ricci, F / Robinet, F / Rocchi, A / Rolland, L / Romano, R / Rosińska, D / Ruggi, P / Sassolas, B / Sentenac, D / Sperandio, L / Sturani, R / Swinkels, B / Tacca, M / Taffarello, L / Toncelli, A / Tonelli, M / Torre, O / Tournefier, E / Travasso, F / Vajente, G / van den Brand, J F J / Van den Broeck, C / van der Putten, S / Vasuth, M / Vavoulidis, M / Vedovato, G / Verkindt, D / Vetrano, F / Viceré, A / Vinet, J-Y / Vitale, S / Vocca, H / Ward, R L / Was, M / Yvert, M / Zadroźny, A / Zendri, J-P

    The Review of scientific instruments

    2011  Volume 82, Issue 9, Page(s) 94502

    Abstract: We report an application of Kalman filtering to the inverted pendulum (IP) of the Virgo gravitational wave interferometer. Using subspace method system identification techniques, we calculated a linear mechanical model of Virgo IP from experimental ... ...

    Abstract We report an application of Kalman filtering to the inverted pendulum (IP) of the Virgo gravitational wave interferometer. Using subspace method system identification techniques, we calculated a linear mechanical model of Virgo IP from experimental transfer functions. We then developed a Kalman filter, based on the obtained state space representation, that estimates from open loop time domain data, the state variables of the system. This allows the observation (and eventually control) of every resonance mode of the IP mechanical structure independently.
    Language English
    Publishing date 2011-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/1.3637466
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  9. Article ; Online: Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO's and Advanced Virgo's Third Observing Run.

    Abbott, R / Abbott, T D / Acernese, F / Ackley, K / Adams, C / Adhikari, N / Adhikari, R X / Adya, V B / Affeldt, C / Agarwal, D / Agathos, M / Agatsuma, K / Aggarwal, N / Aguiar, O D / Aiello, L / Ain, A / Ajith, P / Albanesi, S / Allocca, A /
    Altin, P A / Amato, A / Anand, C / Anand, S / Ananyeva, A / Anderson, S B / Anderson, W G / Andrade, T / Andres, N / Andrić, T / Angelova, S V / Ansoldi, S / Antelis, J M / Antier, S / Appert, S / Arai, K / Araya, M C / Areeda, J S / Arène, M / Arnaud, N / Aronson, S M / Arun, K G / Asali, Y / Ashton, G / Assiduo, M / Aston, S M / Astone, P / Aubin, F / Austin, C / Babak, S / Badaracco, F / Bader, M K M / Badger, C / Bae, S / Baer, A M / Bagnasco, S / Bai, Y / Baird, J / Ball, M / Ballardin, G / Ballmer, S W / Balsamo, A / Baltus, G / Banagiri, S / Bankar, D / Barayoga, J C / Barbieri, C / Barish, B C / Barker, D / Barneo, P / Barone, F / Barr, B / Barsotti, L / Barsuglia, M / Barta, D / Bartlett, J / Barton, M A / Bartos, I / Bassiri, R / Basti, A / Bawaj, M / Bayley, J C / Baylor, A C / Bazzan, M / Bécsy, B / Bedakihale, V M / Bejger, M / Belahcene, I / Benedetto, V / Beniwal, D / Bennett, T F / Bentley, J D / BenYaala, M / Bergamin, F / Berger, B K / Bernuzzi, S / Berry, C P L / Bersanetti, D / Bertolini, A / Betzwieser, J / Beveridge, D / Bhandare, R / Bhardwaj, U / Bhattacharjee, D / Bhaumik, S / Bilenko, I A / Billingsley, G / Bini, S / Birney, R / Birnholtz, O / Biscans, S / Bischi, M / Biscoveanu, S / Bisht, A / Biswas, B / Bitossi, M / Bizouard, M-A / Blackburn, J K / Blair, C D / Blair, D G / Blair, R M / Bobba, F / Bode, N / Boer, M / Bogaert, G / Boldrini, M / Bonavena, L D / Bondu, F / Bonilla, E / Bonnand, R / Booker, P / Boom, B A / Bork, R / Boschi, V / Bose, N / Bose, S / Bossilkov, V / Boudart, V / Bouffanais, Y / Bozzi, A / Bradaschia, C / Brady, P R / Bramley, A / Branch, A / Branchesi, M / Brau, J E / Breschi, M / Briant, T / Briggs, J H / Brillet, A / Brinkmann, M / Brockill, P / Brooks, A F / Brooks, J / Brown, D D / Brunett, S / Bruno, G / Bruntz, R / Bryant, J / Bulik, T / Bulten, H J / Buonanno, A / Buscicchio, R / Buskulic, D / Buy, C / Byer, R L / Cadonati, L / Cagnoli, G / Cahillane, C / Bustillo, J Calderón / Callaghan, J D / Callister, T A / Calloni, E / Cameron, J / Camp, J B / Canepa, M / Canevarolo, S / Cannavacciuolo, M / Cannon, K C / Cao, H / Capote, E / Carapella, G / Carbognani, F / Carlin, J B / Carney, M F / Carpinelli, M / Carrillo, G / Carullo, G / Carver, T L / Diaz, J Casanueva / Casentini, C / Castaldi, G / Caudill, S / Cavaglià, M / Cavalier, F / Cavalieri, R / Ceasar, M / Cella, G / Cerdá-Durán, P / Cesarini, E / Chaibi, W / Chakravarti, K / Subrahmanya, S Chalathadka / Champion, E / Chan, C-H / Chan, C / Chan, C L / Chan, K / Chandra, K / Chanial, P / Chao, S / Charlton, P / Chase, E A / Chassande-Mottin, E / Chatterjee, C / Chatterjee, Debarati / Chatterjee, Deep / Chaturvedi, M / Chaty, S / Chatziioannou, K / Chen, H Y / Chen, J / Chen, X / Chen, Y / Chen, Z / Cheng, H / Cheong, C K / Cheung, H Y / Chia, H Y / Chiadini, F / Chiarini, G / Chierici, R / Chincarini, A / Chiofalo, M L / Chiummo, A / Cho, G / Cho, H S / Choudhary, R K / Choudhary, S / Christensen, N / Chu, Q / Chua, S / Chung, K W / Ciani, G / Ciecielag, P / Cieślar, M / Cifaldi, M / Ciobanu, A A / Ciolfi, R / Cipriano, F / Cirone, A / Clara, F / Clark, E N / Clark, J A / Clarke, L / Clearwater, P / Clesse, S / Cleva, F / Coccia, E / Codazzo, E / Cohadon, P-F / Cohen, D E / Cohen, L / Colleoni, M / Collette, C G / Colombo, A / Colpi, M / Compton, C M / Constancio, M / Conti, L / Cooper, S J / Corban, P / Corbitt, T R / Cordero-Carrión, I / Corezzi, S / Corley, K R / Cornish, N / Corre, D / Corsi, A / Cortese, S / Costa, C A / Cotesta, R / Coughlin, M W / Coulon, J-P / Countryman, S T / Cousins, B / Couvares, P / Coward, D M / Cowart, M J / Coyne, D C / Coyne, R / Creighton, J D E / Creighton, T D / Criswell, A W / Croquette, M / Crowder, S G / Cudell, J R / Cullen, T J / Cumming, A / Cummings, R / Cunningham, L / Cuoco, E / Curyło, M / Dabadie, P / Canton, T Dal / Dall'Osso, S / Dálya, G / Dana, A / DaneshgaranBajastani, L M / D'Angelo, B / Danilishin, S / D'Antonio, S / Danzmann, K / Darsow-Fromm, C / Dasgupta, A / Datrier, L E H / Datta, S / Dattilo, V / Dave, I / Davier, M / Davies, G S / Davis, D / Davis, M C / Daw, E J / Dean, R / DeBra, D / Deenadayalan, M / Degallaix, J / De Laurentis, M / Deléglise, S / Del Favero, V / De Lillo, F / De Lillo, N / Del Pozzo, W / DeMarchi, L M / De Matteis, F / D'Emilio, V / Demos, N / Dent, T / Depasse, A / De Pietri, R / De Rosa, R / De Rossi, C / DeSalvo, R / De Simone, R / Dhurandhar, S / Díaz, M C / Diaz-Ortiz, M / Didio, N A / Dietrich, T / Di Fiore, L / Di Fronzo, C / Di Giorgio, C / Di Giovanni, F / Di Giovanni, M / Di Girolamo, T / Di Lieto, A / Ding, B / Di Pace, S / Di Palma, I / Di Renzo, F / Divakarla, A K / Dmitriev, A / Doctor, Z / D'Onofrio, L / Donovan, F / Dooley, K L / Doravari, S / Dorrington, I / Drago, M / Driggers, J C / Drori, Y / Ducoin, J-G / Dupej, P / Durante, O / D'Urso, D / Duverne, P-A / Dwyer, S E / Eassa, C / Easter, P J / Ebersold, M / Eckhardt, T / Eddolls, G / Edelman, B / Edo, T B / Edy, O / Effler, A / 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/ Ward, R L / Warner, J / Was, M / Washington, N Y / Watchi, J / Weaver, B / Webster, S A / Weinert, M / Weinstein, A J / Weiss, R / Weller, C M / Wellmann, F / Wen, L / Weßels, P / Wette, K / Whelan, J T / White, D D / Whiting, B F / Whittle, C / Wilken, D / Williams, D / Williams, M J / Williamson, A R / Willis, J L / Willke, B / Wilson, D J / Winkler, W / Wipf, C C / Wlodarczyk, T / Woan, G / Woehler, J / Wofford, J K / Wong, I C F / Wu, D S / Wysocki, D M / Xiao, L / Yamamoto, H / Yang, F W / Yang, L / Yang, Yang / Yang, Z / Yap, M J / Yeeles, D W / Yelikar, A B / Ying, M / Yoo, J / Yu, Hang / Yu, Haocun / Zadrożny, A / Zanolin, M / Zelenova, T / Zendri, J-P / Zevin, M / Zhang, J / Zhang, L / Zhang, T / Zhang, Y / Zhao, C / Zhao, G / Zhao, Yue / Zhou, R / Zhou, Z / Zhu, X J / Zimmerman, A B / Zucker, M E / Zweizig, J / Jeong, Donghui / Shandera, Sarah

    Physical review letters

    2022  Volume 129, Issue 6, Page(s) 61104

    Abstract: We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2  M_{⊙} and 1.0  M_{⊙} in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend ...

    Abstract We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2  M_{⊙} and 1.0  M_{⊙} in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio q≥0.1. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of 0.14  yr^{-1}. This implies an upper limit on the merger rate of subsolar binaries in the range [220-24200]  Gpc^{-3} yr^{-1}, depending on the chirp mass of the binary. We use this upper limit to derive astrophysical constraints on two phenomenological models that could produce subsolar-mass compact objects. One is an isotropic distribution of equal-mass primordial black holes. Using this model, we find that the fraction of dark matter in primordial black holes in the mass range 0.2  M_{⊙}<m_{PBH}<1.0  M_{⊙} is f_{PBH}≡Ω_{PBH}/Ω_{DM}≲6%. This improves existing constraints on primordial black hole abundance by a factor of ∼3. The other is a dissipative dark matter model, in which fermionic dark matter can collapse and form black holes. The upper limit on the fraction of dark matter black holes depends on the minimum mass of the black holes that can be formed: the most constraining result is obtained at M_{min}=1  M_{⊙}, where f_{DBH}≡Ω_{DBH}/Ω_{DM}≲0.003%. These are the first constraints placed on dissipative dark models by subsolar-mass analyses.<br />
    Language English
    Publishing date 2022-08-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.129.061104
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: In-vacuum Faraday isolation remote tuning.

    Accadia, T / Acernese, F / Antonucci, F / Aoudia, S / Arun, K G / Astone, P / Ballardin, G / Barone, F / Barsuglia, M / Bauer, Th S / Beker, M G / Bigotta, S / Birindelli, S / Bitossi, M / Bizouard, M A / Blom, M / Boccara, C / Bondu, F / Bonelli, L /
    Bosi, L / Braccini, S / Bradaschia, C / Brillet, A / Brisson / Budzynski, R / Bulik, T / Bulten, H J / Buskulic, D / Cagnoli, G / Calloni, E / Campagna, E / Canuel, B / Carbognani, F / Cavalier, F / Cavalieri, R / Cella, G / Cesarini, E / Chassande-Mottin, E / Chincarini, A / Cleva, F / Coccia, E / Colacino, C N / Colas, J / Colla, A / Colombini, M / Corda, C / Corsi, A / Coulon, J-P / Cuoco, E / D'Antonio, S / Dari, A / Dattilo, V / Davier, M / Day, R / De Rosa, R / del Prete, M / Di Fiore, L / Di Lieto, A / Emilio, M Di Paolo / Di Virgilio, A / Dietz, A / Drago, M / Fafone, V / Ferrante, I / Fidecaro, F / Fiori, I / Flaminio, R / Fournier, J-D / Franc, J / Frasca, S / Frasconi, F / Freise, A / Gammaitoni, L / Garufi, F / Gemme, G / Genin, E / Gennai, A / Giazotto, A / Gouaty, R / Granata, M / Greverie, C / Guidi, G M / Heitmann, H / Hello, P / Hild, S / Huet, D / Jaranowski, P / Kowalska, I / Królak, A / La Penna, P / Leroy, N / Letendre, N / Li, T G F / Lorenzini, M / Loriette, V / Losurdo, G / Mackowski, J M / Majorana, E / Man, N / Mantovani, M / Marchesoni, F / Marion, F / Marque, J / Martelli, F / Masserot, A / Michel, C / Milano, L / Minenkov, Y / Mohan, M / Moreau, J / Morgado, N / Morgia, A / Mosca, S / Moscatelli, V / Mours, B / Neri, I / Nocera, F / Pagliaroli, G / Palladino, L / Palomba, C / Paoletti, F / Pardi, S / Parisi, M / Pasqualetti, A / Passaquieti, R / Passuello, D / Persichetti, G / Pichot, M / Piergiovanni, F / Pietka, M / Pinard, L / Poggiani, R / Prato, M / Prodi, G A / Punturo, M / Puppo, P / Rabaste, O / Rabeling, D S / Rapagnani, P / Re, V / Regimbau, T / Ricci, F / Robinet, F / Rocchi, A / Rolland, L / Romano, R / Rosińska, D / Ruggi, P / Sassolas, B / Sentenac, D / Sturani, R / Swinkels, B / Toncelli, A / Tonelli, M / Tournefier, E / Travasso, F / Trummer, J / Vajentei, G / van den Brand, J F J / van der Putten, S / Vavoulidis, M / Vedovato, G / Verkindt, D / Vetrano, F / Viceré, A / Vinet, J-Y / Vocca, H / Was, M / Yvert, M

    Applied optics

    2010  Volume 49, Issue 25, Page(s) 4780–4790

    Abstract: In-vacuum Faraday isolators (FIs) are used in gravitational wave interferometers to prevent the disturbance caused by light reflected back to the input port from the interferometer itself. The efficiency of the optical isolation is becoming more critical ...

    Abstract In-vacuum Faraday isolators (FIs) are used in gravitational wave interferometers to prevent the disturbance caused by light reflected back to the input port from the interferometer itself. The efficiency of the optical isolation is becoming more critical with the increase of laser input power. An in-vacuum FI, used in a gravitational wave experiment (Virgo), has a 20 mm clear aperture and is illuminated by an almost 20 W incoming beam, having a diameter of about 5 mm. When going in vacuum at 10(-6) mbar, a degradation of the isolation exceeding 10 dB was observed. A remotely controlled system using a motorized lambda=2 waveplate inserted between the first polarizer and the Faraday rotator has proven its capability to restore the optical isolation to a value close to the one set up in air.
    Language English
    Publishing date 2010-09-08
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/ao.49.004780
    Database MEDical Literature Analysis and Retrieval System OnLINE

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