Corpus ID: 237605062

Relaxation times for Bose-Einstein condensation by self-interaction and gravity

@inproceedings{Chen2021RelaxationTF,
  title={Relaxation times for Bose-Einstein condensation by self-interaction and gravity},
  author={Jiajun Chen and Xiaolong Du and Erik W Lentz and David James Edward Marsh},
  year={2021}
}
In this letter, we study the Bose-Einstein condensation of a scalar field with attractive selfinteraction both with and without gravitational interactions. We confirm through full dynamical simulation that the condensation time scale due to self-interaction is inversely proportional to the square of the number density n and the self-coupling constant g (τ ∝ n−2g−2). Our results disprove the recent prediction by Kirkpatrick et al. (2020) [1] that the self-interaction relaxation time is inversely… Expand

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References

SHOWING 1-10 OF 50 REFERENCES
Gravitational Bose-Einstein Condensation in the Kinetic Regime.
TLDR
The results suggest that Bose stars may form kinetically in mainstream dark matter models such as invisible QCD axions and fuzzy dark matter. Expand
Collapse of a self-gravitating Bose-Einstein condensate with attractive self-interaction
We study the collapse of a self-gravitating Bose-Einstein condensate with attractive self-interaction. Equilibrium states in which the gravitational attraction and the attraction due to theExpand
Relativistic Axions from Collapsing Bose Stars.
The substructures of light bosonic (axionlike) dark matter may condense into compact Bose stars. We study the collapse of critical-mass stars caused by attractive self-interaction of the axionlikeExpand
Understanding the core-halo relation of quantum wave dark matter from 3D simulations.
TLDR
From this scaling relation, present dwarf satellite galaxies are predicted to have kiloparsec-sized cores and a minimum mass of ∼10(8)M⊙, capable of solving the small-scale controversies in the cold dark matter model. Expand
On the possibility of Bose-star formation
Abstract The relaxation time of a gravitationally bounded cloud of bosons is estimated for the case of a large phase-space density of particles. The axionic mass and self-coupling relaxation time areExpand
Turbulent Thermalization
We study, analytically and with lattice simulations, the decay of coherent field oscillations and the subsequent thermalization of the resulting stochastic classical wave field. The problem ofExpand
Boson stars from self-interacting dark matter
A bstractWe study the possibility that self-interacting bosonic dark matter forms star-like objects. We study both the case of attractive and repulsive self-interactions, and we focus particularly inExpand
Using the Schrodinger equation to simulate collisionless matter
A new numerical technique for following the evolution of collisionless matter under the influence of gravity is proposed. Matter is modeled as a Schrodinger field obeying the coupled Schrodinger andExpand
Mass-radius relation of Newtonian self-gravitating Bose-Einstein condensates with short-range interactions: II. Numerical results
Several recent astrophysical observations of distant type Ia supernovae have revealed that the content of the universe is made of about 70% of dark energy, 25% of dark matter and 5% of baryonicExpand
Quantum dew: Formation of quantum liquid in a nonequilibrium Bose gas
We consider phase separation in a nonequilibrium Bose gas with an attractive interaction between particles. Using numerical integrations on a lattice, we show that the system evolves into a stateExpand
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