Alternatives to the stochastic "noise vector" approach

Philippe de Forcrand, Benjamin Jaeger

Publikation: Bidrag til tidsskriftKonferenceartikelForskningpeer review

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Resumé

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.
OriginalsprogEngelsk
Artikelnummer14022
TidsskriftE P J Web of Conferences
Vol/bind175
Antal sider8
ISSN2100-014X
DOI
StatusUdgivet - 26. mar. 2018
Begivenhed35th International Symposium on Lattice Field Theory - Granada, Spanien
Varighed: 18. jun. 201724. jun. 2017
Konferencens nummer: 35

Konference

Konference35th International Symposium on Lattice Field Theory
Nummer35
LandSpanien
ByGranada
Periode18/06/201724/06/2017

Fingeraftryk

operators
condensates
polynomials
quantum chromodynamics
quarks
expansion
coefficients
approximation

Emneord

  • hep-lat

Citer dette

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Alternatives to the stochastic "noise vector" approach. / Forcrand, Philippe de; Jaeger, Benjamin.

I: E P J Web of Conferences, Bind 175, 14022, 26.03.2018.

Publikation: Bidrag til tidsskriftKonferenceartikelForskningpeer review

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AB - 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.

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