Real-time dynamics of axion particle production due to spontaneous decay of a coherent axion field
Abstract
We show that the coherent axion field spontaneously decays by emitting axion particles via quantum tunneling if axion potential has more than one minimum. By employing the ℏ expansion and mean field approximation, we develop a formalism to trace the real-time dynamics of the axion particle production including its backreaction to the coherent axion field. We also present numerical results for the time evolution of various physical quantities including the strength of the coherent axion field, phase-space density of produced axion particles, energy density, and pressure. Phenomenological implications of our results are also discussed.
- Authors:
- Publication Date:
- Research Org.:
- State Univ. of New York (SUNY), Albany, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1591696
- Alternate Identifier(s):
- OSTI ID: 1803137
- Grant/Contract Number:
- FG-88ER40388; AC02-98CH10886; SC-0017662; SC0017662; FG02-88ER40388; 11847206; 11535012; 11675041
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 1; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics
Citation Formats
Huang, Xu-Guang, Kharzeev, Dmitri E., and Taya, Hidetoshi. Real-time dynamics of axion particle production due to spontaneous decay of a coherent axion field. United States: N. p., 2020.
Web. doi:10.1103/PhysRevD.101.016011.
Huang, Xu-Guang, Kharzeev, Dmitri E., & Taya, Hidetoshi. Real-time dynamics of axion particle production due to spontaneous decay of a coherent axion field. United States. https://doi.org/10.1103/PhysRevD.101.016011
Huang, Xu-Guang, Kharzeev, Dmitri E., and Taya, Hidetoshi. Tue .
"Real-time dynamics of axion particle production due to spontaneous decay of a coherent axion field". United States. https://doi.org/10.1103/PhysRevD.101.016011.
@article{osti_1591696,
title = {Real-time dynamics of axion particle production due to spontaneous decay of a coherent axion field},
author = {Huang, Xu-Guang and Kharzeev, Dmitri E. and Taya, Hidetoshi},
abstractNote = {We show that the coherent axion field spontaneously decays by emitting axion particles via quantum tunneling if axion potential has more than one minimum. By employing the ℏ expansion and mean field approximation, we develop a formalism to trace the real-time dynamics of the axion particle production including its backreaction to the coherent axion field. We also present numerical results for the time evolution of various physical quantities including the strength of the coherent axion field, phase-space density of produced axion particles, energy density, and pressure. Phenomenological implications of our results are also discussed.},
doi = {10.1103/PhysRevD.101.016011},
journal = {Physical Review D},
number = 1,
volume = 101,
place = {United States},
year = {2020},
month = {1}
}
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