Effect of weak interactions on the ultrarelativistic Bose-Einstein condensation temperature - art. no. 015018

Authors
Bedingham, DJ Evans, TS
Citation
Dj. Bedingham et Ts. Evans, Effect of weak interactions on the ultrarelativistic Bose-Einstein condensation temperature - art. no. 015018, PHYS REV D, 6410(10), 2001, pp. 5018
Citations number
28
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6410
Issue
10
Year of publication
2001
Database
ISI
SICI code
0556-2821(20011115)6410:10<5018:EOWIOT>2.0.ZU;2-E
Abstract
We calculate the ultrarelativistic Bose-Einstein condensation temperature o f a complex scalar field with weak lambda(Phi (dagger)Phi)(2) interaction. We show that at high temperature and finite density we can use dimensional reduction to produce an effective three-dimensional theory which then requi res nonperturbative analysis. For simplicity and ease of implementation we illustrate this process with the linear delta expansion.