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Title: Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped Magnetometers

Abstract

We investigate the sensitivity of a search for the oscillating current induced by axion dark matter in an external magnetic field using optically pumped magnetometers. This experiment is based upon the LC circuit (circuit with inductor and capacitor) axion detection concept of Sikivie et al. [Phys. Rev. Lett. 112, 131301 (2014)]. The modification of Maxwell’s equations caused by the axion-photon coupling results in a minute magnetic field oscillating at a frequency equal to the axion mass, in the presence of an external magnetic field. The axion-induced magnetic field could be searched for using a LC circuit amplifier with an optically pumped magnetometer, the most sensitive cryogen-free magnetic-field sensor, in a room-temperature experiment, avoiding the need for a complicated and expensive cryogenic system. Here, we discuss how an existing magnetic resonance imaging experiment can be modified to search for axions in a previously unexplored part of the parameter space. Our existing detection setup, optimized for magnetic resonance imagining, is already sensitive to an axion-photon coupling of 10 -7 GeV -1 for an axion mass near 3 × 10 -10 eV, which is already limited by astrophysical processes and solar axion searches. We show that realistic modifications, and optimization of the experimentmore » for axion detection, can probe the axion-photon coupling up to 4 orders of magnitude beyond the current best limit, for axion masses between 10 -1 and 10 -7 eV.« less

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1441350
Alternate Identifier(s):
OSTI ID: 1433457
Report Number(s):
LA-UR-18-20811
Journal ID: ISSN 2470-0010; TRN: US1900909
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics

Citation Formats

Chu, Pinghan, Duffy, Leanne Delma, Kim, Young Jin, and Savukov, Igor Mykhaylovich. Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped Magnetometers. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.072011.
Chu, Pinghan, Duffy, Leanne Delma, Kim, Young Jin, & Savukov, Igor Mykhaylovich. Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped Magnetometers. United States. doi:10.1103/PhysRevD.97.072011.
Chu, Pinghan, Duffy, Leanne Delma, Kim, Young Jin, and Savukov, Igor Mykhaylovich. Tue . "Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped Magnetometers". United States. doi:10.1103/PhysRevD.97.072011. https://www.osti.gov/servlets/purl/1441350.
@article{osti_1441350,
title = {Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped Magnetometers},
author = {Chu, Pinghan and Duffy, Leanne Delma and Kim, Young Jin and Savukov, Igor Mykhaylovich},
abstractNote = {We investigate the sensitivity of a search for the oscillating current induced by axion dark matter in an external magnetic field using optically pumped magnetometers. This experiment is based upon the LC circuit (circuit with inductor and capacitor) axion detection concept of Sikivie et al. [Phys. Rev. Lett. 112, 131301 (2014)]. The modification of Maxwell’s equations caused by the axion-photon coupling results in a minute magnetic field oscillating at a frequency equal to the axion mass, in the presence of an external magnetic field. The axion-induced magnetic field could be searched for using a LC circuit amplifier with an optically pumped magnetometer, the most sensitive cryogen-free magnetic-field sensor, in a room-temperature experiment, avoiding the need for a complicated and expensive cryogenic system. Here, we discuss how an existing magnetic resonance imaging experiment can be modified to search for axions in a previously unexplored part of the parameter space. Our existing detection setup, optimized for magnetic resonance imagining, is already sensitive to an axion-photon coupling of 10-7 GeV-1 for an axion mass near 3 × 10-10 eV, which is already limited by astrophysical processes and solar axion searches. We show that realistic modifications, and optimization of the experiment for axion detection, can probe the axion-photon coupling up to 4 orders of magnitude beyond the current best limit, for axion masses between 10-1 and 10-7 eV.},
doi = {10.1103/PhysRevD.97.072011},
journal = {Physical Review D},
number = 7,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

FIG. 1 FIG. 1: Schematic drawing of the axion dark matter search using a LC circuit-OPM detection system. The OPM is simplified as a vapor cell. The output coil is positioned right above the vapor cell in order not to block the laser beams.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.