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Title: Simple QED- and QCD-like models at finite density
Authors: Pawlowski, Jan M.
Stamatescu, Ion-Olimpiu
Zielinski, Christian
Issue Date: 2015
Source: Pawlowski, J. M., Stamatescu, I.-O., & Zielinski, C. (2015). Simple QED- and QCD-like models at finite density. Physical Review D, 92, 014508-.
Series/Report no.: Physical Review D
Abstract: In this paper we discuss one-dimensional models reproducing some features of quantum electrodynamics and quantum chromodynamics at nonzero density and temperature. Since a severe sign problem makes a numerical treatment of QED and QCD at high density difficult, such models help to explore various effects peculiar to the full theory. Studying them gives insights into the large density behavior of the Polyakov loop by taking both bosonic and fermionic degrees of freedom into account, although in one dimension only the implementation of a global gauge symmetry is possible. For these models we evaluate the respective partition functions and discuss several observables as well as the Silver Blaze phenomenon.
ISSN: 1550-7998
DOI: 10.1103/PhysRevD.92.014508
Schools: School of Physical and Mathematical Sciences 
Rights: © 2015 American Physical Society. This paper was published in Physical Review D and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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