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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 |
Files in This Item:
File | Size | Format | |
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000358851100007.pdf | 529.66 kB | Adobe PDF | View/Open |
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