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Bose‐Einstein condensation in the early universe
Author(s) -
Morikawa M.
Publication year - 2010
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201010448
Subject(s) - physics , spacetime , quantum gravity , abelian group , theoretical physics , einstein , universe , quantum , mathematical physics , general relativity , quantum mechanics , pure mathematics , mathematics
By introducing the Bose‐Einstein condensation dynamics (BEC), we develop a unified model of dark energy and dark matter. The two phases of BEC (= dark energy) and normal gas (= dark matter) transform with each other through the phase transition. We study the present mild acceleration, the inflation in the early universe, and the reduction of the cosmological constant. We find the stagflation regime when the cosmic expansion stops and the uniform mode of BEC becomes unstable. We also comment on the possibility that BEC generation/decay series might have continued all the time in the cosmic history from the inflation to present.