English

Bose--Einstein condensation for particles with repulsive short-range pair interactions in a Poisson random external potential in $\mathbb R^d$

Mathematical Physics 2022-11-01 v1 Quantum Gases math.MP Quantum Physics

Abstract

We study Bose gases in dd dimensions, d2d \ge 2, with short-range repulsive pair interactions, at positive temperature, in the canonical ensemble and in the thermodynamic limit. We assume the presence of hard Poissonian obstacles and focus on the non-percolation regime. For sufficiently strong interparticle interactions, we show that almost surely there cannot be Bose--Einstein condensation into a sufficiently localized, normalized one-particle state. The results apply to the eigenstates of the underlying one-particle Hamiltonian.

Keywords

Cite

@article{arxiv.2110.04587,
  title  = {Bose--Einstein condensation for particles with repulsive short-range pair interactions in a Poisson random external potential in $\mathbb R^d$},
  author = {Joachim Kerner and Maximilian Pechmann},
  journal= {arXiv preprint arXiv:2110.04587},
  year   = {2022}
}
R2 v1 2026-06-24T06:45:43.660Z