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Alternatives to the stochastic "noise vector" approach

Several important observables, like the quark condensate and the Taylor coefficients of the expansion of the QCD pressure with respect to the chemical potential, are based on the trace of the inverse Dirac operator and of its powers. Such traces are traditionally estimated with “noise vectors” sandw...

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Detalles Bibliográficos
Autores principales: de Forcrand, Philippe, Jäger, Benjamin
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1051/epjconf/201817514022
http://cds.cern.ch/record/2290179
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author de Forcrand, Philippe
Jäger, Benjamin
author_facet de Forcrand, Philippe
Jäger, Benjamin
author_sort de Forcrand, Philippe
collection CERN
description Several important observables, like the quark condensate and the Taylor coefficients of the expansion of the QCD pressure with respect to the chemical potential, are based on the trace of the inverse Dirac operator and of its powers. Such traces are traditionally estimated with “noise vectors” sandwiching the operator. We explore alternative approaches based on polynomial approximations of the inverse Dirac operator.
id cern-2290179
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
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spelling cern-22901792023-03-14T20:14:07Zdoi:10.1051/epjconf/201817514022http://cds.cern.ch/record/2290179engde Forcrand, PhilippeJäger, BenjaminAlternatives to the stochastic "noise vector" approachhep-latParticle Physics - LatticeSeveral important observables, like the quark condensate and the Taylor coefficients of the expansion of the QCD pressure with respect to the chemical potential, are based on the trace of the inverse Dirac operator and of its powers. Such traces are traditionally estimated with “noise vectors” sandwiching the operator. We explore alternative approaches based on polynomial approximations of the inverse Dirac operator.Several important observables, like the quark condensate and the Taylor coefficients of the expansion of the QCD pressure with respect to the chemical potential, are based on the trace of the inverse Dirac operator and of its powers. Such traces are traditionally estimated with "noise vectors" sandwiching the operator. We explore alternative approaches based on polynomial approximations of the inverse Dirac operator.arXiv:1710.07305CERN-TH-2017-210CP$^3$-ORIGINS-2017-44oai:cds.cern.ch:22901792018
spellingShingle hep-lat
Particle Physics - Lattice
de Forcrand, Philippe
Jäger, Benjamin
Alternatives to the stochastic "noise vector" approach
title Alternatives to the stochastic "noise vector" approach
title_full Alternatives to the stochastic "noise vector" approach
title_fullStr Alternatives to the stochastic "noise vector" approach
title_full_unstemmed Alternatives to the stochastic "noise vector" approach
title_short Alternatives to the stochastic "noise vector" approach
title_sort alternatives to the stochastic "noise vector" approach
topic hep-lat
Particle Physics - Lattice
url https://dx.doi.org/10.1051/epjconf/201817514022
http://cds.cern.ch/record/2290179
work_keys_str_mv AT deforcrandphilippe alternativestothestochasticnoisevectorapproach
AT jagerbenjamin alternativestothestochasticnoisevectorapproach