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Title: Application of renormalization-group techniques to a homogeneous Bose gas at finite temperature

Abstract

A homogeneous Bose gas is investigated at finite temperature using renormalization-group techniques. A nonperturbative flow equation for the effective potential is derived using sharp and smooth cutoff functions. Numerical solutions of these equations show that the system undergoes a second-order phase transition in accordance with universality arguments. We obtain the critical exponent {nu}=0.73. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
;  [1]
  1. Department of Physics, The Ohio State University, Columbus, Ohio 43210 (United States)
Publication Date:
OSTI Identifier:
357292
Resource Type:
Journal Article
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 60; Journal Issue: 2; Other Information: PBD: Aug 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; BOSE-EINSTEIN CONDENSATION; BOSE-EINSTEIN GAS; NUMERICAL SOLUTION; RENORMALIZATION; CRITICAL TEMPERATURE; PHASE TRANSFORMATIONS

Citation Formats

Andersen, J.O., and Strickland, M. Application of renormalization-group techniques to a homogeneous Bose gas at finite temperature. United States: N. p., 1999. Web. doi:10.1103/PhysRevA.60.1442.
Andersen, J.O., & Strickland, M. Application of renormalization-group techniques to a homogeneous Bose gas at finite temperature. United States. doi:10.1103/PhysRevA.60.1442.
Andersen, J.O., and Strickland, M. Sun . "Application of renormalization-group techniques to a homogeneous Bose gas at finite temperature". United States. doi:10.1103/PhysRevA.60.1442.
@article{osti_357292,
title = {Application of renormalization-group techniques to a homogeneous Bose gas at finite temperature},
author = {Andersen, J.O. and Strickland, M.},
abstractNote = {A homogeneous Bose gas is investigated at finite temperature using renormalization-group techniques. A nonperturbative flow equation for the effective potential is derived using sharp and smooth cutoff functions. Numerical solutions of these equations show that the system undergoes a second-order phase transition in accordance with universality arguments. We obtain the critical exponent {nu}=0.73. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevA.60.1442},
journal = {Physical Review A},
number = 2,
volume = 60,
place = {United States},
year = {1999},
month = {8}
}