EMERGENCE OF COHERENT LONG-WAVELENGTH OSCILLATIONS AFTER A QUENCH - APPLICATION TO QCD

Authors
RAJAGOPAL K WILCZEK F
Citation
K. Rajagopal et F. Wilczek, EMERGENCE OF COHERENT LONG-WAVELENGTH OSCILLATIONS AFTER A QUENCH - APPLICATION TO QCD, Nuclear physics. B, 404(3), 1993, pp. 577-589
Citations number
21
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
404
Issue
3
Year of publication
1993
Pages
577 - 589
Database
ISI
SICI code
0550-3213(1993)404:3<577:EOCLOA>2.0.ZU;2-N
Abstract
To model the dynamics of the chiral order parameter in a far from equi librium phase transition, we consider quenching in the O(4) linear sig ma model. We argue, and present numerical evidence, that in the period immediately following the quench long wavelength modes of the pion fi eld are amplified. This results in large regions of coherent pion osci llations, and could lead to dramatic phenomenological consequences in heavy ion collisions.