Density of observables from local derivatives

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Détails bibliographiques
Auteur principal:	Larsen, Rasmus Normann
Format:	Preprint
Publié:	2024
Sujets:	High Energy Physics - Lattice
Accès en ligne:	Acceder al recurso
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_version_	1866914627148840960
author	Larsen, Rasmus Normann
author_facet	Larsen, Rasmus Normann
contents	We derive a formula to calculate the local change to the log of any density of states for smooth real observables. Using this in Monte-Carlo simulations, we are able to calculate the expectation value of the observable with a precision often better than standard sampling. The method can be applied to previously generated configurations, as long as the analysis uses the same action used to generate the configurations. We show that for observables such as Wilson line correlators, errors are reduced by up to 4 times.
format	Preprint
id	arxiv_https___arxiv_org_abs_2401_01211
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Density of observables from local derivatives Larsen, Rasmus Normann High Energy Physics - Lattice We derive a formula to calculate the local change to the log of any density of states for smooth real observables. Using this in Monte-Carlo simulations, we are able to calculate the expectation value of the observable with a precision often better than standard sampling. The method can be applied to previously generated configurations, as long as the analysis uses the same action used to generate the configurations. We show that for observables such as Wilson line correlators, errors are reduced by up to 4 times.
title	Density of observables from local derivatives
topic	High Energy Physics - Lattice
url	https://arxiv.org/abs/2401.01211

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