Phase transition of interacting Bose gases in general power-law potentials

O Zobay, G Metikas, G Alber

Research output: Contribution to journalArticle (Academic Journal)

13 Citations (Scopus)

Abstract

We investigate the phase transition of interacting Bose gases in general power-law traps in the thermodynamic limit. Using energy-shell renormalization and the epsilon expansion, we evaluate the partition function for the uncondensed gas phase within a renormalization-group framework. This approach allows a unified description of homogeneous as well as inhomogeneous and anisotropic systems. Results for the critical temperature are compared to mean-field theory as well as to a local-density approximation based on renormalization-group theory for the homogeneous Bose gas. This comparison indicates the consistency of our approach. We also make suggestions for an optimized trap design in experiments that measure the transition temperature.
Translated title of the contributionPhase transition of interacting Bose gases in general power-law potentials
Original languageEnglish
Pages (from-to)1 - 10
Number of pages10
JournalPhysical Review A: Atomic, Molecular and Optical Physics
Volume69 (6, 063615)
DOIs
Publication statusPublished - Jun 2004

Bibliographical note

Publisher: American Physical Society

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