Finite Temperature Collapse of a Bose Gas with Attractive Interactions

TL;DR

This paper investigates the stability and collapse of an attractive Bose gas across temperature regimes, emphasizing the role of non-condensed particles and extending findings to spinor condensates.

Contribution

It provides a unified theoretical framework for Bose gas collapse from low to high temperatures, highlighting the importance of non-condensed particles and applying results to spinor condensates.

Findings

Non-condensed particles significantly influence stability boundaries.

A unified collapse picture valid across temperature regimes is developed.

Results are extended to domain formation in spinor condensates.

Abstract

We study the mechanical stability of the weakly interacting Bose gas with attractive interactions, and construct a unified picture of the collapse valid from the low temperature condensed region to the high temperature classical regime. As we show, the non-condensed particles play a crucial role in determining the region of stability. We extend our results to describe domain formation in spinor condensates.