Search for topological defect dark matter with a global network of optical magnetometers

Afach, Samer; Buchler, Ben C.; Budker, Dmitry; Dailey, Conner; Derevianko, Andrei; Dumont, Vincent; Figueroa, Nataniel L.; Gerhardt, Ilja; Grujić, Zoran D.; Guo, Hong; Hao, Chuanpeng; Hamilton, Paul S.; Hedges, Morgan; Kimball, Derek F. Jackson; Kim, Dongok; Khamis, Sami; Kornack, Thomas; Lebedev, Victor; Lu, Zheng-Tian; Masia-Roig, Hector; Monroy, Madeline; Padniuk, Mikhail; Palm, Christopher A.; Park, Sun Yool; Paul, Karun V.; Penaflor, Alexander; Peng, Xiang; Pospelov, Maxim; Preston, Rayshaun; Pustelny, Szymon; Scholtes, Theo; Segura, Perrin C.; Semertzidis, Yannis K.; Sheng, Dong; Shin, Yun Chang; Smiga, Joseph A.; Stalnaker, Jason E.; Sulai, Ibrahim; Tandon, Dhruv; Wang, Tao; Weis, Antoine; Wickenbrock, Arne; Wilson, Tatum; Wu, Teng; Wurm, David; Xiao, Wei; Yang, Yucheng; Yu, Dongrui; Zhang, Jianwei

doi:10.48550/arxiv.2102.13379

Cited by 6 publications

(7 citation statements)

References 58 publications

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“…We also develop a system of dual simultaneously working comagnetometers in this work, by adding a closedloop Rb isotope comagnetometer. This extended system has potential applications in precision measurements, such as the advanced GNOME experiment [38][39][40][41], where we can simultaneously and independently measure the anomalous coupling of the axion-like particles with proton spin and neutron spin.…”

Section: Discussionmentioning

confidence: 99%

Herriott-Cavity-Assisted Closed-Loop Xe Isotope Comagnetometer

Hao,

Yu,

Yuan

et al. 2021

Preprint

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We present in this paper a Herriott-cavity-assisted closed-loop Xe isotope gas comagnetometer. In this system, 129 Xe and 131 Xe atoms are pumped and probed by polarized Rb atoms, and continuously driven by oscillating magnetic fields, whose frequencies are kept on resonance by phase-locked loops (PLLs). Different from other schemes, we use a Herriott cavity to improve the Rb magnetometer sensitivity instead of the parametric modulation method, and this passive method is aimed to improve the system stability while maintaining the sensitivity. This system has demonstrated an angle random walk (ARW) of 0.06 • /h 1/2 , and a bias instability of 0.2 • /h (0.15 µHz) with a bandwidth of 1.5 Hz. By adding a closed-loop Rb isotope comagnetometer, we can extend this system to dual simultaneously working comagnetometers sharing the same cell. This extended system has wide applications in precision measurements, where we can simultaneously and independently measure the coupling of anomalous fields with proton spin and neutron spin.

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Section: Discussionmentioning

confidence: 99%

Herriott-Cavity-Assisted Closed-Loop Xe Isotope Comagnetometer

Hao,

Yu,

Yuan

et al. 2021

Preprint

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“…tional support for it [66]. By treating the Hubble expansion of space as an independent curvature in general relativity, the equations of GR can accommodate a scenario in which the observations of SNe 1a and BAO may be described without requiring additional parameters for DM or accelerating dark energy.…”

Section: Journal Of Modern Physicsmentioning

confidence: 99%

Hubble Expansion as an Einstein Curvature

Marr¹

2022

JMP

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Extending the spacetime manifold of general relativity (GR) to incorporate the Hubble expansion of space as a specific curvature, generates a modified solution with three additional non-zero Christoffel symbols and a reformulated Ricci tensor and curvature. The observational consequences of this reformulation are compared with the ΛCDM model for luminosity distance using the extensive type 1a supernovae (SNe 1a) data with redshift corrected to the CMB, and for angular diameter distance using the recent baryonic acoustic oscillation (BAO) data. For the SNe 1a data, the modified GR and ΛCDM models differ by 0.11

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“…That is nothing but the gradient of domain wall configuration. The corresponding magnetic field is now being searched for in GNOME experiment [68][69][70]. The experimental advantage of introducing another light axion is that the force range, 1/m φ , can be much longer than the wallsize 1/m a with m φ m a .…”

Section: Cosmic Axion Force From Domain Wallmentioning

confidence: 99%

“…the galactic center for the DM, and the strength is almost constant in time, and, therefore, distinguishable from the direct detection of the DM. Compact object can be searched for in the magnetometers of GNOME [68][69][70]. The induced effective magnetic field is also time-varying.…”

Section: Introductionmentioning

confidence: 99%

Cosmic Axion Force

Kim,

Semertzidis

et al. 2021

Preprint

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Nambu-Goldstone bosons, or axions, may be ubiquitous. Some of the axions may have small masses and thus serve as mediators of long-range forces.In this paper, we study the force mediated by an extremely light axion, φ, between the visible sector and the dark sector, where dark matter lives. Since nature does not preserve the CP symmetry, the coupling between dark matter and φ is generically CP-violating. In this case, the induced force is extremely long-range and behaves as an effective magnetic field. If the force acts on electrons or nucleons, the spins of them on Earth precess around a fixed direction towards the galactic center. This provides an experimental opportunity for φ with mass, m φ , and decay constant, f φ , satisfying m φ 10 −25 eV, f φ 10 14 GeV if the daily modulation of the effective magnetic field signals in magnetometers is measured by using the coherent averaging method. The effective magnetic field induced by an axionic compact object, such as an axion domain wall, is also discussed.

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Search for topological defect dark matter with a global network of optical magnetometers

Cited by 6 publications

References 58 publications

Herriott-Cavity-Assisted Closed-Loop Xe Isotope Comagnetometer

Herriott-Cavity-Assisted Closed-Loop Xe Isotope Comagnetometer

Hubble Expansion as an Einstein Curvature

Cosmic Axion Force

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