Entropy production and reheating at the chiral phase transition

Entropy production and reheating at the chiral phase transition

We study the production of entropy in the context of a nonequilibrium chiral phase transition. The dynamical symmetry breaking is modeled by a Langevin equation for the order parameter coupled to the Bjorken dynamics of a quark plasma. We investigate the impact of dissipation and noise on the entrop...

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Main Authors: Christoph Herold, Apiwit Kittiratpattana, Chinorat Kobdaj, Ayut Limphirat, Yupeng Yan, Marlene Nahrgang, Jan Steinheimer, Marcus Bleicher
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319300930
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spelling doaj-6f7855de4b434fa0830b508324aefda72020-11-25T01:59:02ZengElsevierPhysics Letters B0370-26932019-03-01790557562Entropy production and reheating at the chiral phase transitionChristoph Herold0Apiwit Kittiratpattana1Chinorat Kobdaj2Ayut Limphirat3Yupeng Yan4Marlene Nahrgang5Jan Steinheimer6Marcus Bleicher7School of Physics, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima 30000, ThailandSchool of Physics, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima 30000, ThailandSchool of Physics, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima 30000, Thailand; Corresponding author.School of Physics, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima 30000, ThailandSchool of Physics, Suranaree University of Technology, 111 University Avenue, Nakhon Ratchasima 30000, ThailandSUBATECH, UMR 6457, Université de Nantes, IMT Atlantique, IN2P3/CNRS, 4 rue Alfred Kastler, 44307 Nantes cedex 3, FranceFrankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, GermanyFrankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany; Institut für Theoretische Physik, Goethe Universität Frankfurt, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany; John von Neumann-Institut für Computing, Forschungzentrum Jülich, 52425 Jülich, GermanyWe study the production of entropy in the context of a nonequilibrium chiral phase transition. The dynamical symmetry breaking is modeled by a Langevin equation for the order parameter coupled to the Bjorken dynamics of a quark plasma. We investigate the impact of dissipation and noise on the entropy and explore the possibility of reheating for crossover and first-order phase transitions, depending on the expansion rate of the fluid. The relative increase in S/N is estimated to range from 10% for a crossover to 100% for a first-order phase transition at low beam energies, which could be detected in the pion-to-proton ratio as a function of beam energy. Keywords: Chiral phase transition, Nonequilibrium dynamics, Heavy-ion collisionshttp://www.sciencedirect.com/science/article/pii/S0370269319300930
collection DOAJ
language English
format Article
sources DOAJ
author Christoph Herold
Apiwit Kittiratpattana
Chinorat Kobdaj
Ayut Limphirat
Yupeng Yan
Marlene Nahrgang
Jan Steinheimer
Marcus Bleicher
spellingShingle Christoph Herold
Apiwit Kittiratpattana
Chinorat Kobdaj
Ayut Limphirat
Yupeng Yan
Marlene Nahrgang
Jan Steinheimer
Marcus Bleicher
Entropy production and reheating at the chiral phase transition
Physics Letters B
author_facet Christoph Herold
Apiwit Kittiratpattana
Chinorat Kobdaj
Ayut Limphirat
Yupeng Yan
Marlene Nahrgang
Jan Steinheimer
Marcus Bleicher
author_sort Christoph Herold
title Entropy production and reheating at the chiral phase transition
title_short Entropy production and reheating at the chiral phase transition
title_full Entropy production and reheating at the chiral phase transition
title_fullStr Entropy production and reheating at the chiral phase transition
title_full_unstemmed Entropy production and reheating at the chiral phase transition
title_sort entropy production and reheating at the chiral phase transition
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2019-03-01
description We study the production of entropy in the context of a nonequilibrium chiral phase transition. The dynamical symmetry breaking is modeled by a Langevin equation for the order parameter coupled to the Bjorken dynamics of a quark plasma. We investigate the impact of dissipation and noise on the entropy and explore the possibility of reheating for crossover and first-order phase transitions, depending on the expansion rate of the fluid. The relative increase in S/N is estimated to range from 10% for a crossover to 100% for a first-order phase transition at low beam energies, which could be detected in the pion-to-proton ratio as a function of beam energy. Keywords: Chiral phase transition, Nonequilibrium dynamics, Heavy-ion collisions
url http://www.sciencedirect.com/science/article/pii/S0370269319300930
work_keys_str_mv AT christophherold entropyproductionandreheatingatthechiralphasetransition
AT apiwitkittiratpattana entropyproductionandreheatingatthechiralphasetransition
AT chinoratkobdaj entropyproductionandreheatingatthechiralphasetransition
AT ayutlimphirat entropyproductionandreheatingatthechiralphasetransition
AT yupengyan entropyproductionandreheatingatthechiralphasetransition
AT marlenenahrgang entropyproductionandreheatingatthechiralphasetransition
AT jansteinheimer entropyproductionandreheatingatthechiralphasetransition
AT marcusbleicher entropyproductionandreheatingatthechiralphasetransition
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