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Article
Astronomy & Astrophysics
Shuyang Cao et al.
Summary: We obtain the nonequilibrium condensate of the Chern Simons density induced by a misaligned homogeneous coherent axion field in linear response. The Chern-Simons dynamical susceptibility is simply related to the axion self-energy, a result that is valid to leading order in the axion coupling but to all orders in the couplings of the gauge fields to other fields within or beyond the standard model except the axion. We conjecture that emergent axionlike quasiparticle excitations in condensed matter systems may be harnessed to probe cosmological axions and the Chern-Simons condensate.
Article
Astronomy & Astrophysics
Shuyang Cao et al.
Summary: We study the nonequilibrium dynamics of axionlike particles (ALP) coupled to Standard Model degrees of freedom in thermal equilibrium. The QME for ALP's reduced density matrix is derived to describe the damped oscillation dynamics, thermalization, decoherence, and entropy production. The ALP energy density features a mixed dark matter scenario, with a cold component from the misaligned condensate and a hot component from thermalization with the bath.
Review
Multidisciplinary Sciences
Francesca Chadha-Day et al.
Summary: This article reviews the development of the axion as a candidate particle for dark matter. It describes the historical roots of the axion in the Standard Model of particle physics and the problem of charge-parity invariance of the strong nuclear force. It discusses the production of the axion as a dark matter candidate and its interactions with ordinary matter.
Article
Astronomy & Astrophysics
Shuyang Cao et al.
Summary: We study the nonequilibrium dynamics of a pseudoscalar axionlike particle weakly coupled to thermal degrees of freedom and discuss its cosmological consequences. By obtaining the reduced density matrix and effective action, we investigate the time evolution and find that the energy density of the pseudoscalar axionlike particle features a mixture of cold and hot components that vary in time. We also analyze the self-energy of the axionlike particle and the possibility of a phase transition.
Article
Physics, Multidisciplinary
C. Bartram et al.
Summary: Our experiment reported results from a haloscope search for axion dark matter, excluding the axion-photon coupling predicted by a benchmark model. The sensitivity was achieved through the use of a large-volume cavity, a superconducting magnet, an ultra low noise Josephson parametric amplifier, and subKelvin temperatures. The validity of the detection procedure was ensured by injecting and detecting blind synthetic axion signals.
PHYSICAL REVIEW LETTERS
(2021)
Review
Physics, Multidisciplinary
Pierre Sikivie
Summary: The axion was proposed to solve the strong CP problem and provides a solution to the dark matter problem as well. Various methods have been proposed to search for dark matter axions and axions emitted by the Sun, leading to significant constraints on the notion of an invisible axion.
REVIEWS OF MODERN PHYSICS
(2021)
Article
Physics, Applied
Akihiko Sekine et al.
Summary: Axion electrodynamics in three-dimensional topological materials is characterized by a coupling between the axion and photon, resulting in fascinating magnetoelectric phenomena. This phenomenon is closely related to the topological magnetoelectric effect in such materials, involving static and dynamical axion insulators, as well as the electromagnetic responses of Weyl semimetals.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Jiabin Yu et al.
Summary: This study predicts that dynamical strain can induce bulk orbital magnetization in Weyl semimetals gapped by charge density waves, terming this effect as the dynamical piezomagnetic effect (DPME). Unlike previous studies on piezoelectric effects, the DPME originates from the Chern-Simons 3-form, representing a fundamentally 3D strain effect. The DPME exhibits a discontinuous change at a critical value of the CDW order parameter phase, triggering a topological quantum phase transition on the surface of the system.
Article
Physics, Multidisciplinary
Henrik S. Roising et al.
Summary: Multiferroics are materials with multiple ferroic orders, capable of exhibiting a magnetoelectric effect where magnetic and ferroelectric polarizations couple linearly. Fluctuations near the ferromagnetic transition temperature can enhance the axion-induced magnetic response.
PHYSICAL REVIEW RESEARCH
(2021)
Article
Astronomy & Astrophysics
Ariel Arza et al.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2020)
Review
Physics, Applied
Dennis M. Nenno et al.
NATURE REVIEWS PHYSICS
(2020)
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Astronomy & Astrophysics
Pierluca Carenza et al.
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Multidisciplinary Sciences
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Review
Physics, Multidisciplinary
David J. E. Marsh
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2016)
Review
Physics, Nuclear
Peter W. Graham et al.
ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, VOL 65
(2015)
Article
Physics, Multidisciplinary
D. Boyanovsky
NEW JOURNAL OF PHYSICS
(2015)
Article
Astronomy & Astrophysics
Andreas Ringwald
PHYSICS OF THE DARK UNIVERSE
(2012)
Article
Physics, Multidisciplinary
Rundong Li et al.
Article
Multidisciplinary Sciences
Article
Materials Science, Multidisciplinary
Xiao-Liang Qi et al.
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Physics, Multidisciplinary
W Hu et al.
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Astronomy & Astrophysics
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