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Home Search Quick Search Advanced Fulltext Browse Collections Persons My eDoc Session History Login Name: Password: Documentation Help Support Wiki Direct access to document ID:	Institute: MPI für Physik     Collection: YB 2016     Display Documents ID: 716029.0, MPI für Physik / YB 2016 Some remarks on Lefschetz thimbles and complex Langevin dynamics Authors: Aarts, Gert; Bongiovanni, Lorenzo; Seiler, Erhard; Sexty, Denes Audience: Not Specified Intended Educational Use: No Abstract / Description: Progress in simulating QCD at nonzero baryon density requires, amongst others, substantial numerical effort. Here we propose two different expansions to all orders in the hopping parameter, preserving the full Yang-Mills action, which are much cheaper to simulate. We carry out simulations using complex Langevin dynamics, both in the hopping expansions and in the full theory, for two flavours of Wilson fermions, and agreement is seen at sufficiently high order in the expansion. These results provide support for the use of complex Langevin dynamics to study QCD at nonzero density, both in the full and the expanded theory, and for the convergence of the latter. Classification / Thesaurus: Field Theory Comment of the Author/Creator: 18 pages, several figures; footnote and references added, to appear in JHEP Document Type: Article Communicated by: MPI für Physik Affiliations: MPI für Physik Identifiers: LOCALID:MPP-2014-383 URL:http://inspirehep.net/search?p=find+eprint+1407.20... URL:http://arXiv.org/abs/arxiv:1407.2090 URL:https://publications.mppmu.mpg.de/?action=search&m... Full Text: You have privileges to view the following file(s): arxiv:1407.2090.pdf   Uploading file not finished... The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.