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          Institute: MPI für Physik     Collection: YB 2016     Display Documents



ID: 715903.0, MPI für Physik / YB 2016
Complex Langevin dynamics for SU(3) gauge theory in the presence of a theta term
Authors:Bongiovanni, Lorenzo; Aarts, Gert; Seiler, Erhard; Sexty, Denes
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:One of the yet unsolved questions of QCD in the context of the Standard Model is to explain the strong CP problem. A way to look for a better understanding of it is to investigate the theory in the presence of a non-zero topological theta term. On the lattice such a term is complex: hence it introduces a sign problem which, in general, limits the applicability of standard Monte Carlo methods. Here we will discuss the approach of complex Langevin dynamics and show results for both real and imaginary values of theta. We also report on our experience with the gradient flow for real and imaginary theta.
Classification / Thesaurus:Field Theory
Comment of the Author/Creator:7 pages,7 eps figures,presented at the 32nd International Symposium on Lattice Field Theory (Lattice 2014), 23 - 28 June 2014, New York, USA
Document Type:Conference-Paper
Communicated by:MPI für Physik
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2014-553
URL:http://inspirehep.net/search?p=find+eprint+1411.09...
URL:http://arXiv.org/abs/arxiv:1411.0949
URL:https://publications.mppmu.mpg.de/?action=search&m...
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