Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/241816
Type: Artigo
Title: Indications of a nontrivial vacuum in the effective theory of perfect fluids
Author: Burch, T.
Torrieri, G.
Abstract: Using lattice field theory techniques, we investigate the vacuum structure of the field theory corresponding to perfect fluid dynamics in the Lagrangian prescription. We find intriguing, but inconclusive evidence, that the vacuum of such a theory is nontrivial, casting doubts on whether the gradient expansion can provide a good effective field theory for this type of system. The nontrivial vacuum looks like a "turbulent" state where some of the entropy is carried by macroscopic degrees of freedom. We describe further steps to strengthen or falsify this evidence.
Using lattice field theory techniques, we investigate the vacuum structure of the field theory corresponding to perfect fluid dynamics in the Lagrangian prescription. We find intriguing, but inconclusive evidence, that the vacuum of such a theory is nontrivial, casting doubts on whether the gradient expansion can provide a good effective field theory for this type of system. The nontrivial vacuum looks like a "turbulent" state where some of the entropy is carried by macroscopic degrees of freedom. We describe further steps to strengthen or falsify this evidence.
Subject: Colisões entre íons
Cromodinâmica quântica
Plasma de quarks e glúons
Country: Estados Unidos
Editor: American Physical Society
Citation: Indications Of A Nontrivial Vacuum In The Effective Theory Of Perfect Fluids. Amer Physical Soc, v. 92, p. JUL-2015.
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.92.016009
Address: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.016009
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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