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- Title
Phases of the Bose-Einstein Condensate Dark Matter Model with Both Two- and Three-Particle Interactions.
- Authors
Gavrilik, Alexandre M.; Nazarenko, Andriy V.
- Abstract
In this paper, we further elaborate on the Bose-Einstein condensate (BEC) dark matter model extended in our previous work [Phys. Rev. D 2020,102, 083510] by the inclusion of sixth-order (or three-particle) repulsive self-interaction term. Herein, our goal is to complete the picture through adding to the model the fourth-order repulsive self-interaction. The results of our analysis confirm the following: while in the previous work the two-phase structure and the possibility of first-order phase transition was established, here we demonstrate that with the two self-interactions involved, the nontrivial phase structure of the enriched model remains intact. For this to hold, we study the conditions which the parameters of the model, including the interaction parameters, should satisfy. As a by-product and in order to provide some illustration, we obtain the rotation curves and the (bipartite) entanglement entropy for the case of a particular dwarf galaxy.
- Subjects
TWO-phase flow; PHASE transitions; DARK matter; BOSE-Einstein condensation; DWARF galaxies
- Publication
Universe (2218-1997), 2021, Vol 7, Issue 10, p1
- ISSN
2218-1997
- Publication type
Article
- DOI
10.3390/universe7100359