The lattice QCD phase diagram in and away from the strong coupling limit

We study lattice QCD with four flavors of staggered quarks. In the limit of infinite gauge coupling, "dual" variables can be introduced, which render the finite-density sign problem mild and allow a full determination of the $\mu-T$ phase diagram by Monte Carlo simulations, also in the chi...

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Detalles Bibliográficos
Autores principales: de Forcrand, Philippe, Langelage, Jens, Philipsen, Owe, Unger, Wolfgang
Lenguaje:eng
Publicado: 2014
Materias:
hep-lat
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.113.152002
http://cds.cern.ch/record/1710136
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author de Forcrand, Philippe
Langelage, Jens
Philipsen, Owe
Unger, Wolfgang
author_facet de Forcrand, Philippe
Langelage, Jens
Philipsen, Owe
Unger, Wolfgang
author_sort de Forcrand, Philippe
collection CERN
description We study lattice QCD with four flavors of staggered quarks. In the limit of infinite gauge coupling, "dual" variables can be introduced, which render the finite-density sign problem mild and allow a full determination of the $\mu-T$ phase diagram by Monte Carlo simulations, also in the chiral limit. However, the continuum limit coincides with the weak coupling limit. We propose a strong-coupling expansion approach towards the continuum limit. We show first results, including the phase diagram and its chiral critical point, from this expansion truncated to next-to-leading order.
id cern-1710136
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17101362019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.113.152002http://cds.cern.ch/record/1710136engde Forcrand, PhilippeLangelage, JensPhilipsen, OweUnger, WolfgangThe lattice QCD phase diagram in and away from the strong coupling limithep-latWe study lattice QCD with four flavors of staggered quarks. In the limit of infinite gauge coupling, "dual" variables can be introduced, which render the finite-density sign problem mild and allow a full determination of the $\mu-T$ phase diagram by Monte Carlo simulations, also in the chiral limit. However, the continuum limit coincides with the weak coupling limit. We propose a strong-coupling expansion approach towards the continuum limit. We show first results, including the phase diagram and its chiral critical point, from this expansion truncated to next-to-leading order.We study lattice QCD with four flavors of staggered quarks. In the limit of infinite gauge coupling, "dual" variables can be introduced, which render the finite-density sign problem mild and allow a full determination of the $\mu-T$ phase diagram by Monte Carlo simulations, also in the chiral limit. However, the continuum limit coincides with the weak coupling limit. We propose a strong-coupling expansion approach towards the continuum limit. We show first results, including the phase diagram and its chiral critical point, from this expansion truncated to next-to-leading order.<p>We study lattice QCD with four flavors of staggered quarks. In the limit of infinite gauge coupling, “dual” variables can be introduced, which render the finite-density sign problem mild and allow a full determination of the <inline-formula><mml:math display="inline"><mml:mrow><mml:mi>μ</mml:mi><mml:mo>-</mml:mo><mml:mi>T</mml:mi></mml:mrow></mml:math></inline-formula> phase diagram by Monte Carlo simulations, also in the chiral limit. However, the continuum limit coincides with the weak coupling limit. We propose a strong-coupling expansion approach towards the continuum limit. We show first results, including the phase diagram and its chiral critical point, from this expansion truncated at next-to-leading order.</p>arXiv:1406.4397CERN-PH-TH-2014-139CERN-PH-TH-2014-139oai:cds.cern.ch:17101362014-06-17
spellingShingle hep-lat
de Forcrand, Philippe
Langelage, Jens
Philipsen, Owe
Unger, Wolfgang
The lattice QCD phase diagram in and away from the strong coupling limit
title The lattice QCD phase diagram in and away from the strong coupling limit
title_full The lattice QCD phase diagram in and away from the strong coupling limit
title_fullStr The lattice QCD phase diagram in and away from the strong coupling limit
title_full_unstemmed The lattice QCD phase diagram in and away from the strong coupling limit
title_short The lattice QCD phase diagram in and away from the strong coupling limit
title_sort lattice qcd phase diagram in and away from the strong coupling limit
topic hep-lat
url https://dx.doi.org/10.1103/PhysRevLett.113.152002
http://cds.cern.ch/record/1710136
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