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Critical scaling of finite temperature QED3 in anisotropic space–time

Bonnet, Jacqueline and Fischer, Christian S. (2012):
Critical scaling of finite temperature QED3 in anisotropic space–time.
In: Physics Letters B, 718Elsevier, pp. 532-537, ISSN 03702693,
[Online-Edition: http://www.elsevier.com/locate/physletb],
[Article]

Abstract

We investigate the scaling behavior of the critical temperature of anisotropic QED in 2 + 1 dimensions with respect to a variation of the number of fermions N f . To this end we determine the order parameter of the chiral transition of the theory from a set of (truncated) Dyson–Schwinger equations for the fermion propagator formulated in a finite volume. We verify the validity of previously determined universal power laws for the scaling behavior of the critical temperature with N f . We furthermore study the variation of the corresponding critical exponent with the degree of anisotropy and find considerable variations.

Item Type: Article
Erschienen: 2012
Creators: Bonnet, Jacqueline and Fischer, Christian S.
Title: Critical scaling of finite temperature QED3 in anisotropic space–time
Language: English
Abstract:

We investigate the scaling behavior of the critical temperature of anisotropic QED in 2 + 1 dimensions with respect to a variation of the number of fermions N f . To this end we determine the order parameter of the chiral transition of the theory from a set of (truncated) Dyson–Schwinger equations for the fermion propagator formulated in a finite volume. We verify the validity of previously determined universal power laws for the scaling behavior of the critical temperature with N f . We furthermore study the variation of the corresponding critical exponent with the degree of anisotropy and find considerable variations.

Journal or Publication Title: Physics Letters B
Volume: 718
Publisher: Elsevier
Divisions: 05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > D: Theoretische Kernstrukturphysik > D4: Strongly Interacting Fermion Systems: Graphene
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > D: Theoretische Kernstrukturphysik
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 30 Apr 2013 15:56
Official URL: http://www.elsevier.com/locate/physletb
Identification Number: doi:10.1016/j.physletb.2012.11.004
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