The  QCD Phase Diagram with Effective Theories

Ydalia Delgado; Hans Gerd Evertz; Christof Gattringer; Daniel Göschl

doi:10.22323/1.139.0190

The QCD Phase Diagram with Effective Theories

Ydalia Delgado^*, Hans Gerd Evertz, Christof Gattringer, Daniel Göschl

^*Korrespondierende/r Autor/-in für diese Arbeit

Institut für Theoretische Physik - Computational Physics (5150)

Publikation: Beitrag in einer Fachzeitschrift › Konferenzartikel

Abstract

We study two effective theories for QCD at non-zero temperature and finite chemical potential, using local Polyakov loops as the degrees of freedom. The sign problem is solved by exactly mapping the partition function to a sum over flux and monomer variables with only real and positive weights, making the two models accessible to Monte Carlo simulation techniques. We use generalized worm algorithms and a local Metropolis update to perform the simulations and determine the phase diagram as a function of the temperature and the chemical potential.

Originalsprache	englisch
Fachzeitschrift	Proceedings of Science
Jahrgang	139
DOIs	https://doi.org/10.22323/1.139.0190
Publikationsstatus	Veröffentlicht - 3 Nov. 2011
Veranstaltung	29th International Symposium on Lattice Field Theory: Lattice 2011 - Lake Tahoe, USA / Vereinigte Staaten Dauer: 10 Juli 2011 → 16 Juli 2011

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10.22323/1.139.0190Lizenz: CC BY-NC-SA 4.0

1111.0916v1

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abstract = " We study two effective theories for QCD at non-zero temperature and finite chemical potential, using local Polyakov loops as the degrees of freedom. The sign problem is solved by exactly mapping the partition function to a sum over flux and monomer variables with only real and positive weights, making the two models accessible to Monte Carlo simulation techniques. We use generalized worm algorithms and a local Metropolis update to perform the simulations and determine the phase diagram as a function of the temperature and the chemical potential. ",

keywords = "hep-lat",

author = "Ydalia Delgado and Evertz, {Hans Gerd} and Christof Gattringer and Daniel G{\"o}schl",

note = "7 pages, 3 figures. Talk presented at The XXIX International Symposium on Lattice Field Theory - Lattice 2011, Squaw Valley, Lake Tahoe, California, July 10-16, 2011; 29th International Symposium on Lattice Field Theory : Lattice 2011, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",

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T1 - The QCD Phase Diagram with Effective Theories

AU - Delgado, Ydalia

AU - Evertz, Hans Gerd

AU - Gattringer, Christof

AU - Göschl, Daniel

N1 - 7 pages, 3 figures. Talk presented at The XXIX International Symposium on Lattice Field Theory - Lattice 2011, Squaw Valley, Lake Tahoe, California, July 10-16, 2011

PY - 2011/11/3

Y1 - 2011/11/3

N2 - We study two effective theories for QCD at non-zero temperature and finite chemical potential, using local Polyakov loops as the degrees of freedom. The sign problem is solved by exactly mapping the partition function to a sum over flux and monomer variables with only real and positive weights, making the two models accessible to Monte Carlo simulation techniques. We use generalized worm algorithms and a local Metropolis update to perform the simulations and determine the phase diagram as a function of the temperature and the chemical potential.

AB - We study two effective theories for QCD at non-zero temperature and finite chemical potential, using local Polyakov loops as the degrees of freedom. The sign problem is solved by exactly mapping the partition function to a sum over flux and monomer variables with only real and positive weights, making the two models accessible to Monte Carlo simulation techniques. We use generalized worm algorithms and a local Metropolis update to perform the simulations and determine the phase diagram as a function of the temperature and the chemical potential.

KW - hep-lat

U2 - 10.22323/1.139.0190

DO - 10.22323/1.139.0190

M3 - Conference article

SN - 1824-8039

VL - 139

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 29th International Symposium on Lattice Field Theory

Y2 - 10 July 2011 through 16 July 2011

ER -

The QCD Phase Diagram with Effective Theories

Abstract

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