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Title: Phase ordering kinetics of the Bose gas

Abstract

We study the approach to equilibrium of a Bose gas to a superfluid state. We point out that dynamic scaling, characteristic of far from equilibrium phase-ordering systems, should hold. We stress the importance of a nondissipative Josephson precession term in driving the system to a new universality class. A model of coarsening in dimension {ital d}=2, involving a quench between two temperatures below the equilibrium superfluid transition temperature ({ital T}{sub {ital c}}), is exactly solved and demonstrates the relevance of the Josephson term. Numerical results on quenches from above {ital T}{sub {ital c}} in {ital d}=2,3 provide evidence for the scaling picture postulated. {copyright} {ital 1996 The American Physical Society.}

Authors:
; ;  [1]
  1. Department of Physics, P.O. Box 208120, Yale University, New Haven, Connecticut 06520-8120 (United States)
Publication Date:
OSTI Identifier:
397552
Resource Type:
Journal Article
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 54; Journal Issue: 6; Other Information: PBD: Dec 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; BOSE-EINSTEIN GAS; SUPERFLUIDITY; SCALING LAWS; ORDER-DISORDER TRANSFORMATIONS; TRANSITION TEMPERATURE; BOSE-EINSTEIN CONDENSATION; METASTABLE PHASES; SPIN SYSTEMS

Citation Formats

Damle, K, Majumdar, S N, and Sachdev, S. Phase ordering kinetics of the Bose gas. United States: N. p., 1996. Web. doi:10.1103/PhysRevA.54.5037.
Damle, K, Majumdar, S N, & Sachdev, S. Phase ordering kinetics of the Bose gas. United States. https://doi.org/10.1103/PhysRevA.54.5037
Damle, K, Majumdar, S N, and Sachdev, S. 1996. "Phase ordering kinetics of the Bose gas". United States. https://doi.org/10.1103/PhysRevA.54.5037.
@article{osti_397552,
title = {Phase ordering kinetics of the Bose gas},
author = {Damle, K and Majumdar, S N and Sachdev, S},
abstractNote = {We study the approach to equilibrium of a Bose gas to a superfluid state. We point out that dynamic scaling, characteristic of far from equilibrium phase-ordering systems, should hold. We stress the importance of a nondissipative Josephson precession term in driving the system to a new universality class. A model of coarsening in dimension {ital d}=2, involving a quench between two temperatures below the equilibrium superfluid transition temperature ({ital T}{sub {ital c}}), is exactly solved and demonstrates the relevance of the Josephson term. Numerical results on quenches from above {ital T}{sub {ital c}} in {ital d}=2,3 provide evidence for the scaling picture postulated. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevA.54.5037},
url = {https://www.osti.gov/biblio/397552}, journal = {Physical Review A},
number = 6,
volume = 54,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1996},
month = {Sun Dec 01 00:00:00 EST 1996}
}