Alternatives to the stochastic "noise vector" approach

Philippe de Forcrand; Benjamin Jaeger

doi:10.1051/epjconf/201817514022

Alternatives to the stochastic "noise vector" approach

Philippe de Forcrand, Benjamin Jaeger

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Abstract

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.

Original language	English
Article number	14022
Journal	E P J Web of Conferences
Volume	175
Number of pages	8
ISSN	2100-014X
DOIs	https://doi.org/10.1051/epjconf/201817514022
Publication status	Published - 26. Mar 2018
Event	35th International Symposium on Lattice Field Theory - Granada, Spain Duration: 18. Jun 2017 → 24. Jun 2017 Conference number: 35

Conference

Conference	35th International Symposium on Lattice Field Theory
Number	35
Country/Territory	Spain
City	Granada
Period	18/06/2017 → 24/06/2017

Bibliographical note

Eight pages, thirteen figures. Proceedings of the 35th International Symposium on Lattice Field Theory

Documents & Links

10.1051/epjconf/201817514022Licence: CC BY

1710.07305v1Submitted manuscript, 2.62 MB
Alternatives to the stochastic noise vector approachFinal published version, 1.36 MBLicence: CC BY

Cite this

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N2 - 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.

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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DO - 10.1051/epjconf/201817514022

M3 - Conference article

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Alternatives to the stochastic "noise vector" approach

Abstract

Conference

Bibliographical note

Documents & Links

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Cite this