Alexandru, Andrei; Bergner, Georg; Schaich, David Alexander; Wenger, Urs (2018). Solution of the sign problem in the Potts model at fixed fermion number. Physical review. D - particles, fields, gravitation, and cosmology, 97(11) American Physical Society 10.1103/PhysRevD.97.114503
|
Text
PhysRevD.97.114503.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (684kB) | Preview |
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 Zð3Þ 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 Zð3Þ transformations.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Alexandru, Andrei, Schaich, David Alexander, Wenger, Urs |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1550-7998 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
30 Aug 2018 15:47 |
Last Modified: |
05 Dec 2022 15:17 |
Publisher DOI: |
10.1103/PhysRevD.97.114503 |
ArXiv ID: |
1712.07585 |
BORIS DOI: |
10.7892/boris.119678 |
URI: |
https://boris.unibe.ch/id/eprint/119678 |
Actions (login required)
 |
Edit item |