Gravitationally bound condensates formed by bosons with potential energy V (A) = Λ4[1–cos(A/f)]

We review our recent work on gravitationally bound condensates formed by Hermitian bosons interacting with a potential energy Λ 4 [1 − cos( A / f )]. We have used an expansion method to simplify the equations of motion. The expansion parameters are the binding energy of the condensed bosons, and the...

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Bibliographic Details
Published in:Physics of atomic nuclei 2017, Vol.80 (4), p.808-813
Main Authors: Eby, J., Suranyi, P., Vaz, C., Wijewardhana, L. C. R.
Format: Article
Language:English
Subjects:
Binding energy
Bosons
Condensates
Elementary Particles and Fields
Equations of motion
Particle and Nuclear Physics
Physics
Physics and Astronomy
Potential energy
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Summary:We review our recent work on gravitationally bound condensates formed by Hermitian bosons interacting with a potential energy Λ 4 [1 − cos( A / f )]. We have used an expansion method to simplify the equations of motion. The expansion parameters are the binding energy of the condensed bosons, and the ratio between the scale of the Bose field f and the Planck mass. Applying our analysis to QCD axions, we find that the condensates have a limiting mass of O(10 19 ) kg and a size of O(100) km.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778817040093