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Article ; Online: Prediction of entrainment and 1:1 phase-locked modes in two-neuron networks based on the phase resetting curve method.

Oprisan, Sorinel Adrian / Boutan, Christian

The International journal of neuroscience

2008 Volume 118, Issue 6, Page(s) 867–890

Abstract: This study elaborated a systematic and consistent technique for predicting 1:1 entrainment patterns in two-neuron networks based on the phase resetting curve (PRC). The graphical method of the first-order PRC is intuitive and successfully predicts both ... ...

Abstract	This study elaborated a systematic and consistent technique for predicting 1:1 entrainment patterns in two-neuron networks based on the phase resetting curve (PRC). The graphical method of the first-order PRC is intuitive and successfully predicts both the entrained period and the phase difference between neural oscillators. It was found that the shape of the synaptic current is not critical in determining the PRC, but the area of the injected current versus time, which is the exchanged electric charge, is a crucial factor. The PRC-based existence and stability criterion for entrainment is in good agreement with the experimental data.
MeSH term(s)	Biological Clocks/physiology ; Forecasting ; Membrane Potentials/physiology ; Nerve Net/physiology ; Neural Networks (Computer) ; Neurons/physiology
Language	English
Publishing date	2008-06
Publishing country	England
Document type	Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	3061-2
ISSN	1563-5279 ; 1543-5245 ; 0020-7454
ISSN (online)	1563-5279 ; 1543-5245
ISSN	0020-7454
DOI	10.1080/00207450701750471
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Article ; Online: Search for a Dark-Matter-Induced Cosmic Axion Background with ADMX.

Nitta, T / Braine, T / Du, N / Guzzetti, M / Hanretty, C / Leum, G / Rosenberg, L J / Rybka, G / Sinnis, J / Clarke, John / Siddiqi, I / Awida, M H / Chou, A S / Hollister, M / Knirck, S / Sonnenschein, A / Wester, W / Gleason, J R / Hipp, A T /

Sikivie, P / Sullivan, N S / Tanner, D B / Khatiwada, R / Carosi, G / Robertson, N / Duffy, L D / Boutan, C / Lentz, E / Oblath, N S / Taubman, M S / Yang, J / Daw, E J / Perry, M G / Bartram, C / Buckley, J H / Gaikwad, C / Hoffman, J / Murch, K W / Goryachev, M / Hartman, E / McAllister, B T / Quiskamp, A / Thomson, C / Tobar, M E / Dror, J A / Murayama, H / Rodd, N L

Physical review letters

2023 Volume 131, Issue 10, Page(s) 101002

Abstract: We report the first result of a direct search for a cosmic axion background (CaB)-a relativistic background of axions that is not dark matter-performed with the axion haloscope, the Axion Dark Matter eXperiment (ADMX). Conventional haloscope analyses ... ...

Abstract	We report the first result of a direct search for a cosmic axion background (CaB)-a relativistic background of axions that is not dark matter-performed with the axion haloscope, the Axion Dark Matter eXperiment (ADMX). Conventional haloscope analyses search for a signal with a narrow bandwidth, as predicted for dark matter, whereas the CaB will be broad. We introduce a novel analysis strategy, which searches for a CaB induced daily modulation in the power measured by the haloscope. Using this, we repurpose data collected to search for dark matter to set a limit on the axion photon coupling of a CaB originating from dark matter cascade decay via a mediator in the 800-995 MHz frequency range. We find that the present sensitivity is limited by fluctuations in the cavity readout as the instrument scans across dark matter masses. Nevertheless, we suggest that these challenges can be surmounted using superconducting qubits as single photon counters, and allow ADMX to operate as a telescope searching for axions emerging from the decay of dark matter. The daily modulation analysis technique we introduce can be deployed for various broadband rf signals, such as other forms of a CaB or even high-frequency gravitational waves.
Language	English
Publishing date	2023-09-20
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.131.101002
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Article ; Online: Dark matter axion search using a Josephson Traveling wave parametric amplifier.

Bartram, C / Braine, T / Cervantes, R / Crisosto, N / Du, N / Leum, G / Mohapatra, P / Nitta, T / Rosenberg, L J / Rybka, G / Yang, J / Clarke, John / Siddiqi, I / Agrawal, A / Dixit, A V / Awida, M H / Chou, A S / Hollister, M / Knirck, S /

Sonnenschein, A / Wester, W / Gleason, J R / Hipp, A T / Jois, S / Sikivie, P / Sullivan, N S / Tanner, D B / Lentz, E / Khatiwada, R / Carosi, G / Cisneros, C / Robertson, N / Woollett, N / Duffy, L D / Boutan, C / Jones, M / LaRoque, B H / Oblath, N S / Taubman, M S / Daw, E J / Perry, M G / Buckley, J H / Gaikwad, C / Hoffman, J / Murch, K / Goryachev, M / McAllister, B T / Quiskamp, A / Thomson, C / Tobar, M E / Bolkhovsky, V / Calusine, G / Oliver, W / Serniak, K

The Review of scientific instruments

2023 Volume 94, Issue 4

Abstract: We describe the first implementation of a Josephson Traveling Wave Parametric Amplifier (JTWPA) in an axion dark matter search. The operation of the JTWPA for a period of about two weeks achieved sensitivity to axion-like particle dark matter with axion- ... ...

Abstract	We describe the first implementation of a Josephson Traveling Wave Parametric Amplifier (JTWPA) in an axion dark matter search. The operation of the JTWPA for a period of about two weeks achieved sensitivity to axion-like particle dark matter with axion-photon couplings above 10-13 Ge V-1 over a narrow range of axion masses centered around 19.84 µeV by tuning the resonant frequency of the cavity over the frequency range of 4796.7-4799.5 MHz. The JTWPA was operated in the insert of the axion dark matter experiment as part of an independent receiver chain that was attached to a 0.56-l cavity. The ability of the JTWPA to deliver high gain over a wide (3 GHz) bandwidth has engendered interest from those aiming to perform broadband axion searches, a longstanding goal in this field.
Language	English
Publishing date	2023-12-12
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	10.1063/5.0122907
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Article ; Online: Search for Invisible Axion Dark Matter in the 3.3-4.2 μeV Mass Range.

Bartram, C / Braine, T / Burns, E / Cervantes, R / Crisosto, N / Du, N / Korandla, H / Leum, G / Mohapatra, P / Nitta, T / Rosenberg, L J / Rybka, G / Yang, J / Clarke, John / Siddiqi, I / Agrawal, A / Dixit, A V / Awida, M H / Chou, A S /

Hollister, M / Knirck, S / Sonnenschein, A / Wester, W / Gleason, J R / Hipp, A T / Jois, S / Sikivie, P / Sullivan, N S / Tanner, D B / Lentz, E / Khatiwada, R / Carosi, G / Robertson, N / Woollett, N / Duffy, L D / Boutan, C / Jones, M / LaRoque, B H / Oblath, N S / Taubman, M S / Daw, E J / Perry, M G / Buckley, J H / Gaikwad, C / Hoffman, J / Murch, K W / Goryachev, M / McAllister, B T / Quiskamp, A / Thomson, C / Tobar, M E

Physical review letters

2022 Volume 127, Issue 26, Page(s) 261803

Abstract: We report the results from a haloscope search for axion dark matter in the 3.3-4.2 μeV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of "invisible" axion dark matter, the Kim-Shifman-Vainshtein- ... ...

Abstract	We report the results from a haloscope search for axion dark matter in the 3.3-4.2 μeV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of "invisible" axion dark matter, the Kim-Shifman-Vainshtein-Zakharov model. This sensitivity is achieved using a large-volume cavity, a superconducting magnet, an ultra low noise Josephson parametric amplifier, and sub-Kelvin temperatures. The validity of our detection procedure is ensured by injecting and detecting blind synthetic axion signals.
Language	English
Publishing date	2022-01-14
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.127.261803
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Article ; Online: Axion Dark Matter Experiment: Detailed design and operations.

Khatiwada, R / Bowring, D / Chou, A S / Sonnenschein, A / Wester, W / Mitchell, D V / Braine, T / Bartram, C / Cervantes, R / Crisosto, N / Du, N / Rosenberg, L J / Rybka, G / Yang, J / Will, D / Kimes, S / Carosi, G / Woollett, N / Durham, S /

Duffy, L D / Bradley, R / Boutan, C / Jones, M / LaRoque, B H / Oblath, N S / Taubman, M S / Tedeschi, J / Clarke, John / Dove, A / Hashim, A / Siddiqi, I / Stevenson, N / Eddins, A / O'Kelley, S R / Nawaz, S / Agrawal, A / Dixit, A V / Gleason, J R / Jois, S / Sikivie, P / Sullivan, N S / Tanner, D B / Solomon, J A / Lentz, E / Daw, E J / Perry, M G / Buckley, J H / Harrington, P M / Henriksen, E A / Murch, K W / Hilton, G C

The Review of scientific instruments

2021 Volume 92, Issue 12, Page(s) 124502

Abstract: Axion dark matter experiment ultra-low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the 2.66-3.1 μeV mass range with Dine-Fischler-Srednicki-Zhitnisky sensitivity [ ... ...

Abstract	Axion dark matter experiment ultra-low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the 2.66-3.1 μeV mass range with Dine-Fischler-Srednicki-Zhitnisky sensitivity [Du et al., Phys. Rev. Lett. 120, 151301 (2018) and Braine et al., Phys. Rev. Lett. 124, 101303 (2020)]. Therefore, it is the most sensitive axion search experiment to date in this mass range. We discuss the technological advances made in the last several years to achieve this sensitivity, which includes the implementation of components, such as the state-of-the-art quantum-noise-limited amplifiers and a dilution refrigerator. Furthermore, we demonstrate the use of a frequency tunable microstrip superconducting quantum interference device amplifier in run 1A, and a Josephson parametric amplifier in run 1B, along with novel analysis tools that characterize the system noise temperature.
Language	English
Publishing date	2021-12-31
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	10.1063/5.0037857
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Article ; Online: Piezoelectrically Tuned Multimode Cavity Search for Axion Dark Matter.

Boutan, C / Jones, M / LaRoque, B H / Oblath, N S / Cervantes, R / Du, N / Force, N / Kimes, S / Ottens, R / Rosenberg, L J / Rybka, G / Yang, J / Carosi, G / Woollett, N / Bowring, D / Chou, A S / Khatiwada, R / Sonnenschein, A / Wester, W /

Bradley, R / Daw, E J / Agrawal, A / Dixit, A V / Clarke, J / O'Kelley, S R / Crisosto, N / Gleason, J R / Jois, S / Sikivie, P / Stern, I / Sullivan, N S / Tanner, D B / Harrington, P M / Lentz, E

Physical review letters

2019 Volume 121, Issue 26, Page(s) 261302

Abstract: The μeV axion is a well-motivated extension to the standard model. The Axion Dark Matter eXperiment (ADMX) collaboration seeks to discover this particle by looking for the resonant conversion of dark-matter axions to microwave photons in a strong ... ...

Abstract	The μeV axion is a well-motivated extension to the standard model. The Axion Dark Matter eXperiment (ADMX) collaboration seeks to discover this particle by looking for the resonant conversion of dark-matter axions to microwave photons in a strong magnetic field. In this Letter, we report results from a pathfinder experiment, the ADMX "Sidecar," which is designed to pave the way for future, higher mass, searches. This testbed experiment lives inside of and operates in tandem with the main ADMX experiment. The Sidecar experiment excludes masses in three widely spaced frequency ranges (4202-4249, 5086-5799, and 7173-7203 MHz). In addition, Sidecar demonstrates the successful use of a piezoelectric actuator for cavity tuning. Finally, this publication is the first to report data measured using both the TM_{010} and TM_{020} modes.
Language	English
Publishing date	2019-01-12
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.121.261302
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Article ; Online: Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment.

Du, N / Force, N / Khatiwada, R / Lentz, E / Ottens, R / Rosenberg, L J / Rybka, G / Carosi, G / Woollett, N / Bowring, D / Chou, A S / Sonnenschein, A / Wester, W / Boutan, C / Oblath, N S / Bradley, R / Daw, E J / Dixit, A V / Clarke, J /

O'Kelley, S R / Crisosto, N / Gleason, J R / Jois, S / Sikivie, P / Stern, I / Sullivan, N S / Tanner, D B / Hilton, G C

Physical review letters

2018 Volume 120, Issue 15, Page(s) 151301

Abstract: This Letter reports the results from a haloscope search for dark matter axions with masses between 2.66 and 2.81 μeV. The search excludes the range of axion-photon couplings predicted by plausible models of the invisible axion. This unprecedented ... ...

Abstract	This Letter reports the results from a haloscope search for dark matter axions with masses between 2.66 and 2.81 μeV. The search excludes the range of axion-photon couplings predicted by plausible models of the invisible axion. This unprecedented sensitivity is achieved by operating a large-volume haloscope at subkelvin temperatures, thereby reducing thermal noise as well as the excess noise from the ultralow-noise superconducting quantum interference device amplifier used for the signal power readout. Ongoing searches will provide nearly definitive tests of the invisible axion model over a wide range of axion masses.
Language	English
Publishing date	2018-04-13
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.120.151301
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Article ; Online: Extended Search for the Invisible Axion with the Axion Dark Matter Experiment.

Braine, T / Cervantes, R / Crisosto, N / Du, N / Kimes, S / Rosenberg, L J / Rybka, G / Yang, J / Bowring, D / Chou, A S / Khatiwada, R / Sonnenschein, A / Wester, W / Carosi, G / Woollett, N / Duffy, L D / Bradley, R / Boutan, C / Jones, M /

LaRoque, B H / Oblath, N S / Taubman, M S / Clarke, J / Dove, A / Eddins, A / O'Kelley, S R / Nawaz, S / Siddiqi, I / Stevenson, N / Agrawal, A / Dixit, A V / Gleason, J R / Jois, S / Sikivie, P / Solomon, J A / Sullivan, N S / Tanner, D B / Lentz, E / Daw, E J / Buckley, J H / Harrington, P M / Henriksen, E A / Murch, K W

Physical review letters

2020 Volume 124, Issue 10, Page(s) 101303

Abstract: This Letter reports on a cavity haloscope search for dark matter axions in the Galactic halo in the mass range 2.81-3.31 μeV. This search utilizes the combination of a low-noise Josephson parametric amplifier and a large-cavity haloscope to achieve ... ...

Abstract	This Letter reports on a cavity haloscope search for dark matter axions in the Galactic halo in the mass range 2.81-3.31 μeV. This search utilizes the combination of a low-noise Josephson parametric amplifier and a large-cavity haloscope to achieve unprecedented sensitivity across this mass range. This search excludes the full range of axion-photon coupling values predicted in benchmark models of the invisible axion that solve the strong CP problem of quantum chromodynamics.
Language	English
Publishing date	2020-03-26
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.124.101303
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