Dark matter and dark energy from a BoseEinstein condensate
Abstract
We show that dark matter consisting of bosons of mass of about 1 eV or less has a critical temperature exceeding the temperature of the Universe at all times, and hence would have formed a BoseEinstein condensate at very early epochs. We also show that the wavefunction of this condensate, via the quantum potential it produces, gives rise to a cosmological constant that may account for the correct dark energy content of our Universe. We argue that massive gravitons or axions are viable candidates for these constituents. In the far future this condensate is all that remains of our Universe.
 Publication:

Classical and Quantum Gravity
 Pub Date:
 May 2015
 DOI:
 10.1088/02649381/32/10/105003
 arXiv:
 arXiv:1411.0753
 Bibcode:
 2015CQGra..32j5003D
 Keywords:

 dark matter;
 dark energy;
 BoseEinstein condensate;
 cosmological constant;
 quantum potential;
 gravitons;
 axions;
 General Relativity and Quantum Cosmology;
 Astrophysics  Cosmology and Nongalactic Astrophysics
 EPrint:
 4 pages, 1 figure. References added and updated. Note added. Version to appear in Classical and Quantum Gravity