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Axion miniclusters and Bose stars
Open accessAbstract
Evolution of inhomogeneities in the axion field around the QCD epoch is studied numerically, including for the first time important nonlinear effects. It is found that perturbations on scales corresponding to causally disconnected regions at T\ensuremath{\sim}1 GeV can lead to very dense axion clumps, with present density ${\mathrm{\ensuremath{\rho}}}_{\mathit{a}}$\ensuremath{\gtrsim}${10}^{\mathrm{\ensuremath{-}}8}$ g ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}3}$. This is high enough for the collisional 2a\ensuremath{\rightarrow}2a process to lead to Bose-Einstein relaxation in the gravitationally bound clumps of axions, forming Bose stars.
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Citations
Cited by
General relativistic boson stars
Schunck, F. E., & Mielke, E. W. (2003) · Classical and Quantum Gravity · doi:10.1088/0264-9381/20/20/201 · Cited by 745
New experimental approaches in the search for axion-like particles
Irastorza, I. G., & Redondo, J. (2018) · Progress in Particle and Nuclear Physics · doi:10.1016/j.ppnp.2018.05.003 · Cited by 745
The landscape of QCD axion models
Di Luzio, L., Giannotti, M., Nardi, E., & Visinelli, L. (2020) · Physics Reports · doi:10.1016/j.physrep.2020.06.002 · Cited by 657
Raffelt, G. G. (2008) · Lecture Notes in Physics · doi:10.1007/978-3-540-73518-2_3 · Cited by 566
Do dark matter axions form a condensate with long-range correlation?
Guth, A. H., Hertzberg, M. P., & Prescod-Weinstein, C. (2015) · Physical Review D · doi:10.1103/physrevd.92.103513 · Cited by 279
Metadata
- Authors
- Kolb, E. W., & Tkachev, I. I.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1993-11-08
- Volume
- 71
- Issue
- 19
- Pages
- 3051-3054
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W2055599255
- Cited by
- 401
- References
- 0
- FWCI
- 2.95
- Type
- journal article
- Language
- en
- Open access
- green
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