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  1. Article ; Online: The POLARBEAR Fourier transform spectrometer calibrator and spectroscopic characterization of the POLARBEAR instrument.

    Matsuda, F / Lowry, L / Suzuki, A / Aguilar Fáundez, M / Arnold, K / Barron, D / Bianchini, F / Cheung, K / Chinone, Y / Elleflot, T / Fabbian, G / Goeckner-Wald, N / Hasegawa, M / Kaneko, D / Katayama, N / Keating, B / Lee, A T / Navaroli, M / Nishino, H /
    Paar, H / Puglisi, G / Richards, P L / Seibert, J / Siritanasak, P / Tajima, O / Takatori, S / Tsai, C / Westbrook, B

    The Review of scientific instruments

    2019  Volume 90, Issue 11, Page(s) 115115

    Abstract: We describe the Fourier Transform Spectrometer (FTS) used for in-field testing of the POLARBEAR receiver, an experiment located in the Atacama Desert of Chile which measures the cosmic microwave background (CMB) polarization. The POLARBEAR-FTS (PB-FTS) ... ...

    Abstract We describe the Fourier Transform Spectrometer (FTS) used for in-field testing of the POLARBEAR receiver, an experiment located in the Atacama Desert of Chile which measures the cosmic microwave background (CMB) polarization. The POLARBEAR-FTS (PB-FTS) is a Martin-Puplett interferometer designed to couple to the Huan Tran Telescope (HTT) on which the POLARBEAR receiver is installed. The PB-FTS measured the spectral response of the POLARBEAR receiver with signal-to-noise ratio >20 for ∼69% of the focal plane detectors due to three features: a high throughput of 15.1 sr cm
    Language English
    Publishing date 2019-11-26
    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 10.1063/1.5095160
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Internal Delensing of Cosmic Microwave Background Polarization B-Modes with the POLARBEAR Experiment.

    Adachi, S / Aguilar Faúndez, M A O / Akiba, Y / Ali, A / Arnold, K / Baccigalupi, C / Barron, D / Beck, D / Bianchini, F / Borrill, J / Carron, J / Cheung, K / Chinone, Y / Crowley, K / El Bouhargani, H / Elleflot, T / Errard, J / Fabbian, G / Feng, C /
    Fujino, T / Goeckner-Wald, N / Hasegawa, M / Hazumi, M / Hill, C A / Howe, L / Katayama, N / Keating, B / Kikuchi, S / Kusaka, A / Lee, A T / Leon, D / Linder, E / Lowry, L N / Matsuda, F / Matsumura, T / Minami, Y / Namikawa, T / Navaroli, M / Nishino, H / Peloton, J / Pham, A T P / Poletti, D / Puglisi, G / Reichardt, C L / Segawa, Y / Sherwin, B D / Silva-Feaver, M / Siritanasak, P / Stompor, R / Tajima, O / Takatori, S / Tanabe, D / Teply, G P / Vergès, C

    Physical review letters

    2020  Volume 124, Issue 13, Page(s) 131301

    Abstract: Using only cosmic microwave background polarization data from the polarbear experiment, we measure B-mode polarization delensing on subdegree scales at more than 5σ significance. We achieve a 14% B-mode power variance reduction, the highest to date for ... ...

    Abstract Using only cosmic microwave background polarization data from the polarbear experiment, we measure B-mode polarization delensing on subdegree scales at more than 5σ significance. We achieve a 14% B-mode power variance reduction, the highest to date for internal delensing, and improve this result to 22% by applying for the first time an iterative maximum a posteriori delensing method. Our analysis demonstrates the capability of internal delensing as a means of improving constraints on inflationary models, paving the way for the optimal analysis of next-generation primordial B-mode experiments.
    Language English
    Publishing date 2020-04-17
    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.124.131301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Measurement of the cosmic microwave background polarization lensing power spectrum with the POLARBEAR experiment.

    Ade, P A R / Akiba, Y / Anthony, A E / Arnold, K / Atlas, M / Barron, D / Boettger, D / Borrill, J / Chapman, S / Chinone, Y / Dobbs, M / Elleflot, T / Errard, J / Fabbian, G / Feng, C / Flanigan, D / Gilbert, A / Grainger, W / Halverson, N W /
    Hasegawa, M / Hattori, K / Hazumi, M / Holzapfel, W L / Hori, Y / Howard, J / Hyland, P / Inoue, Y / Jaehnig, G C / Jaffe, A / Keating, B / Kermish, Z / Keskitalo, R / Kisner, T / Le Jeune, M / Lee, A T / Linder, E / Leitch, E M / Lungu, M / Matsuda, F / Matsumura, T / Meng, X / Miller, N J / Morii, H / Moyerman, S / Myers, M J / Navaroli, M / Nishino, H / Paar, H / Peloton, J / Quealy, E / Rebeiz, G / Reichardt, C L / Richards, P L / Ross, C / Schanning, I / Schenck, D E / Sherwin, B / Shimizu, A / Shimmin, C / Shimon, M / Siritanasak, P / Smecher, G / Spieler, H / Stebor, N / Steinbach, B / Stompor, R / Suzuki, A / Takakura, S / Tomaru, T / Wilson, B / Yadav, A / Zahn, O

    Physical review letters

    2014  Volume 113, Issue 2, Page(s) 21301

    Abstract: Gravitational lensing due to the large-scale distribution of matter in the cosmos distorts the primordial cosmic microwave background (CMB) and thereby induces new, small-scale B-mode polarization. This signal carries detailed information about the ... ...

    Abstract Gravitational lensing due to the large-scale distribution of matter in the cosmos distorts the primordial cosmic microwave background (CMB) and thereby induces new, small-scale B-mode polarization. This signal carries detailed information about the distribution of all the gravitating matter between the observer and CMB last scattering surface. We report the first direct evidence for polarization lensing based on purely CMB information, from using the four-point correlations of even- and odd-parity E- and B-mode polarization mapped over ∼30 square degrees of the sky measured by the POLARBEAR experiment. These data were analyzed using a blind analysis framework and checked for spurious systematic contamination using null tests and simulations. Evidence for the signal of polarization lensing and lensing B modes is found at 4.2σ (stat+sys) significance. The amplitude of matter fluctuations is measured with a precision of 27%, and is found to be consistent with the Lambda cold dark matter cosmological model. This measurement demonstrates a new technique, capable of mapping all gravitating matter in the Universe, sensitive to the sum of neutrino masses, and essential for cleaning the lensing B-mode signal in searches for primordial gravitational waves.
    Language English
    Publishing date 2014-07-11
    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.113.021301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  4. Article ; Online: Evidence for gravitational lensing of the cosmic microwave background polarization from cross-correlation with the cosmic infrared background.

    Ade, P A R / Akiba, Y / Anthony, A E / Arnold, K / Atlas, M / Barron, D / Boettger, D / Borrill, J / Borys, C / Chapman, S / Chinone, Y / Dobbs, M / Elleflot, T / Errard, J / Fabbian, G / Feng, C / Flanigan, D / Gilbert, A / Grainger, W /
    Halverson, N W / Hasegawa, M / Hattori, K / Hazumi, M / Holzapfel, W L / Hori, Y / Howard, J / Hyland, P / Inoue, Y / Jaehnig, G C / Jaffe, A / Keating, B / Kermish, Z / Keskitalo, R / Kisner, T / Le Jeune, M / Lee, A T / Leitch, E M / Linder, E / Lungu, M / Matsuda, F / Matsumura, T / Meng, X / Miller, N J / Morii, H / Moyerman, S / Myers, M J / Navaroli, M / Nishino, H / Paar, H / Peloton, J / Poletti, D / Quealy, E / Rebeiz, G / Reichardt, C L / Richards, P L / Ross, C / Rotermund, K / Schanning, I / Schenck, D E / Sherwin, B D / Shimizu, A / Shimmin, C / Shimon, M / Siritanasak, P / Smecher, G / Spieler, H / Stebor, N / Steinbach, B / Stompor, R / Suzuki, A / Takakura, S / Tikhomirov, A / Tomaru, T / Wilson, B / Yadav, A / Zahn, O

    Physical review letters

    2014  Volume 112, Issue 13, Page(s) 131302

    Abstract: We reconstruct the gravitational lensing convergence signal from cosmic microwave background (CMB) polarization data taken by the Polarbear experiment and cross-correlate it with cosmic infrared background maps from the Herschel satellite. From the cross ...

    Abstract We reconstruct the gravitational lensing convergence signal from cosmic microwave background (CMB) polarization data taken by the Polarbear experiment and cross-correlate it with cosmic infrared background maps from the Herschel satellite. From the cross spectra, we obtain evidence for gravitational lensing of the CMB polarization at a statistical significance of 4.0σ and indication of the presence of a lensing B-mode signal at a significance of 2.3σ. We demonstrate that our results are not biased by instrumental and astrophysical systematic errors by performing null tests, checks with simulated and real data, and analytical calculations. This measurement of polarization lensing, made via the robust cross-correlation channel, not only reinforces POLARBEAR auto-correlation measurements, but also represents one of the early steps towards establishing CMB polarization lensing as a powerful new probe of cosmology and astrophysics.
    Language English
    Publishing date 2014-04-04
    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.112.131302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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