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Title: Solution of the sign problem in the Potts model at fixed fermion number

Abstract

We consider the heavy-dense limit of QCD at finite fermion density in the canonical formulation and approximate it by a three-state Potts model. In the strong-coupling limit, the model is free of the sign problem. Away from the strong coupling, the sign problem is solved by employing a cluster algorithm which allows to average each cluster over the $$\mathbb{Z}(3)$$ sectors. Improved estimators for physical quantities can be constructed by taking into account the triality of the clusters, that is, their transformation properties with respect to $$\mathbb{Z}(3)$$ transformations.

Authors:
; ; ;
Publication Date:
Research Org.:
George Washington Univ., Washington, DC (United States)
Sponsoring Org.:
USDOE Office of Science (SC); German Research Foundation (DFG)
OSTI Identifier:
1440388
Alternate Identifier(s):
OSTI ID: 1501518
Grant/Contract Number:  
FG02-95ER40907; BE 5942/2-1
Resource Type:
Published Article
Journal Name:
Physical Review. D.
Additional Journal Information:
Journal Name: Physical Review. D. Journal Volume: 97 Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Particles & Fields; Statistical Physics; Nuclear Physics

Citation Formats

Alexandru, Andrei, Bergner, Georg, Schaich, David, and Wenger, Urs. Solution of the sign problem in the Potts model at fixed fermion number. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.114503.
Alexandru, Andrei, Bergner, Georg, Schaich, David, & Wenger, Urs. Solution of the sign problem in the Potts model at fixed fermion number. United States. https://doi.org/10.1103/PhysRevD.97.114503
Alexandru, Andrei, Bergner, Georg, Schaich, David, and Wenger, Urs. Tue . "Solution of the sign problem in the Potts model at fixed fermion number". United States. https://doi.org/10.1103/PhysRevD.97.114503.
@article{osti_1440388,
title = {Solution of the sign problem in the Potts model at fixed fermion number},
author = {Alexandru, Andrei and Bergner, Georg and Schaich, David and Wenger, Urs},
abstractNote = {We consider the heavy-dense limit of QCD at finite fermion density in the canonical formulation and approximate it by a three-state Potts model. In the strong-coupling limit, the model is free of the sign problem. Away from the strong coupling, the sign problem is solved by employing a cluster algorithm which allows to average each cluster over the $\mathbb{Z}(3)$ sectors. Improved estimators for physical quantities can be constructed by taking into account the triality of the clusters, that is, their transformation properties with respect to $\mathbb{Z}(3)$ transformations.},
doi = {10.1103/PhysRevD.97.114503},
journal = {Physical Review. D.},
number = 11,
volume = 97,
place = {United States},
year = {Tue Jun 05 00:00:00 EDT 2018},
month = {Tue Jun 05 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.97.114503

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Cited by: 3 works
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