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The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics

Gert Aarts Orcid Logo, Felipe Attanasio, Benjamin Jäger, Dénes Sexty

Journal of High Energy Physics, Volume: 2016, Issue: 9

Swansea University Author: Gert Aarts Orcid Logo

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DOI (Published version): 10.1007/JHEP09(2016)087

Abstract

Complex Langevin simulations allow numerical studies of theories that exhibit a sign problem, such as QCD, and are thereby potentially suitable to determine the QCD phase diagram from first principles. Here we study QCD in the limit of heavy quarks for a wide range of temperatures and chemical poten...

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Published in: Journal of High Energy Physics
ISSN: 1029-8479
Published: 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa30316
first_indexed 2016-10-03T13:07:24Z
last_indexed 2020-07-17T18:47:16Z
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spelling 2020-07-17T13:06:58.4449408 v2 30316 2016-10-03 The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics 1ba0dad382dfe18348ec32fc65f3f3de 0000-0002-6038-3782 Gert Aarts Gert Aarts true false 2016-10-03 BGPS Complex Langevin simulations allow numerical studies of theories that exhibit a sign problem, such as QCD, and are thereby potentially suitable to determine the QCD phase diagram from first principles. Here we study QCD in the limit of heavy quarks for a wide range of temperatures and chemical potentials. Our results include an analysis of the adaptive gauge cooling technique, which prevents large excursions into the non-compact directions of the SL(3,C) manifold. We find that such excursions may appear spontaneously and change the statistical distribution of physical observables, which leads to disagreement with known results. Results whose excursions are sufficiently small are used to map the boundary line between confined and deconfined quark phases. Journal Article Journal of High Energy Physics 2016 9 1029-8479 15 9 2016 2016-09-15 10.1007/JHEP09(2016)087 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2020-07-17T13:06:58.4449408 2016-10-03T12:13:08.8768070 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Gert Aarts 0000-0002-6038-3782 1 Felipe Attanasio 2 Benjamin Jäger 3 Dénes Sexty 4 0030316-03102016140126.pdf JHEP1609087-1.pdf 2016-10-03T12:13:33.7130000 Output 5400640 application/pdf Version of Record true 2016-10-03T00:00:00.0000000 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License true https://creativecommons.org/licenses/by/4.0
title The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
spellingShingle The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
Gert Aarts
title_short The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
title_full The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
title_fullStr The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
title_full_unstemmed The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
title_sort The QCD phase diagram in the limit of heavy quarks using complex Langevin dynamics
author_id_str_mv 1ba0dad382dfe18348ec32fc65f3f3de
author_id_fullname_str_mv 1ba0dad382dfe18348ec32fc65f3f3de_***_Gert Aarts
author Gert Aarts
author2 Gert Aarts
Felipe Attanasio
Benjamin Jäger
Dénes Sexty
format Journal article
container_title Journal of High Energy Physics
container_volume 2016
container_issue 9
publishDate 2016
institution Swansea University
issn 1029-8479
doi_str_mv 10.1007/JHEP09(2016)087
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description Complex Langevin simulations allow numerical studies of theories that exhibit a sign problem, such as QCD, and are thereby potentially suitable to determine the QCD phase diagram from first principles. Here we study QCD in the limit of heavy quarks for a wide range of temperatures and chemical potentials. Our results include an analysis of the adaptive gauge cooling technique, which prevents large excursions into the non-compact directions of the SL(3,C) manifold. We find that such excursions may appear spontaneously and change the statistical distribution of physical observables, which leads to disagreement with known results. Results whose excursions are sufficiently small are used to map the boundary line between confined and deconfined quark phases.
published_date 2016-09-15T13:05:58Z
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score 11.247077

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