Broadband and Resonant Approaches to Axion Dark Matter Detection
When ultralight axion dark matter encounters a static magnetic field, it sources an effective electric current that follows the magnetic field lines and oscillates at the axion Compton frequency. We propose a new experiment to detect this axion effective current. In the presence of axion dark matter...
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| Format: | Article |
| Language: | English |
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American Physical Society
2016
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| Online Access: | http://hdl.handle.net/1721.1/105237 https://orcid.org/0000-0001-9531-1319 https://orcid.org/0000-0002-2406-8160 |
| _version_ | 1811072381568942080 |
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| author | Kahn, Yonatan Safdi, Benjamin Ryan Thaler, Jesse |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Kahn, Yonatan Safdi, Benjamin Ryan Thaler, Jesse |
| author_sort | Kahn, Yonatan |
| collection | MIT |
| description | When ultralight axion dark matter encounters a static magnetic field, it sources an effective electric current that follows the magnetic field lines and oscillates at the axion Compton frequency. We propose a new experiment to detect this axion effective current. In the presence of axion dark matter, a large toroidal magnet will act like an oscillating current ring, whose induced magnetic flux can be measured by an external pickup loop inductively coupled to a SQUID magnetometer. We consider both resonant and broadband readout circuits and show that a broadband approach has advantages at small axion masses. We estimate the reach of this design, taking into account the irreducible sources of noise, and demonstrate potential sensitivity to axionlike dark matter with masses in the range of 10[superscript -14]-10[superscript -6] eV. In particular, both the broadband and resonant strategies can probe the QCD axion with a GUT-scale decay constant. |
| first_indexed | 2024-09-23T09:05:11Z |
| format | Article |
| id | mit-1721.1/105237 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:05:11Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1052372022-09-26T10:22:00Z Broadband and Resonant Approaches to Axion Dark Matter Detection Kahn, Yonatan Safdi, Benjamin Ryan Thaler, Jesse Massachusetts Institute of Technology. Center for Theoretical Physics Safdi, Benjamin Ryan Thaler, Jesse When ultralight axion dark matter encounters a static magnetic field, it sources an effective electric current that follows the magnetic field lines and oscillates at the axion Compton frequency. We propose a new experiment to detect this axion effective current. In the presence of axion dark matter, a large toroidal magnet will act like an oscillating current ring, whose induced magnetic flux can be measured by an external pickup loop inductively coupled to a SQUID magnetometer. We consider both resonant and broadband readout circuits and show that a broadband approach has advantages at small axion masses. We estimate the reach of this design, taking into account the irreducible sources of noise, and demonstrate potential sensitivity to axionlike dark matter with masses in the range of 10[superscript -14]-10[superscript -6] eV. In particular, both the broadband and resonant strategies can probe the QCD axion with a GUT-scale decay constant. Massachusetts Institute of Technology. Pappalardo Fellowship United States. Dept. of Energy (Cooperative Research Agreement DE-SC- 00012567) United States. Dept. of Energy (Early Career Research program DE-SC-0006389) Alfred P. Sloan Foundation (Sloan Research Fellowship) 2016-11-07T20:57:27Z 2016-11-07T20:57:27Z 2016-09 2016-03 2016-09-30T22:00:03Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/105237 Kahn, Yonatan, Benjamin R. Safdi, and Jesse Thaler. “Broadband and Resonant Approaches to Axion Dark Matter Detection.” Physical Review Letters 117.14 (2016): n. pag. © 2016 American Physical Society https://orcid.org/0000-0001-9531-1319 https://orcid.org/0000-0002-2406-8160 en http://dx.doi.org/10.1103/PhysRevLett.117.141801 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Kahn, Yonatan Safdi, Benjamin Ryan Thaler, Jesse Broadband and Resonant Approaches to Axion Dark Matter Detection |
| title | Broadband and Resonant Approaches to Axion Dark Matter Detection |
| title_full | Broadband and Resonant Approaches to Axion Dark Matter Detection |
| title_fullStr | Broadband and Resonant Approaches to Axion Dark Matter Detection |
| title_full_unstemmed | Broadband and Resonant Approaches to Axion Dark Matter Detection |
| title_short | Broadband and Resonant Approaches to Axion Dark Matter Detection |
| title_sort | broadband and resonant approaches to axion dark matter detection |
| url | http://hdl.handle.net/1721.1/105237 https://orcid.org/0000-0001-9531-1319 https://orcid.org/0000-0002-2406-8160 |
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