Real time lattice correlation functions from differential equations

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Abstract
<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We report on an exact calculation of lattice correlation functions on a finite four-dimensional lattice with either Euclidean or Minkowskian signature. The lattice correlation functions are calculated by the method of differential equations. This method can be used for Euclidean and Minkowskian signature alike. The lattice correlation functions have a power series expansion in 1<jats:italic>/</jats:italic><jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{\lambda } $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>λ</mml:mi> </mml:msqrt> </mml:math></jats:alternatives></jats:inline-formula>, where <jats:italic>λ</jats:italic> is the coupling. We show that this series is convergent for all non-zero values of <jats:italic>λ</jats:italic>. At small coupling we quantify the accuracy of perturbative approximations. At the technical level we systematically investigate the interplay between twisted cohomology and the symmetries of the twist function.</jats:p>
Autoren
  • Federico Gasparotto
  • Stefan Weinzierl
  • Xiaofeng Xu
DOI
10.1007/jhep06(2023)128
eISSN
1029-8479
Ausgabe der Veröffentlichung
6
Zeitschrift
Journal of High Energy Physics
Sprache
en
Artikelnummer
128
Online publication date
2023
Status
Published online
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1007/jhep06(2023)128
Datum der Datenerfassung
2023
Titel
Real time lattice correlation functions from differential equations
Ausgabe der Zeitschrift
2023

Datenquelle: Crossref

Andere Metadatenquellen:
Autoren
  • Federico Gasparotto
  • Stefan Weinzierl
  • Xiaofeng Xu
DOI
10.1007/JHEP06(2023)128
Zeitschrift
JHEP
Paginierung
128 - 128
Datum der Veröffentlichung
2023
Datum der Datenerfassung
2024
Titel
Real time lattice correlation functions from differential equations
Sub types
  • article
Ausgabe der Zeitschrift
06

Datenquelle: Manual

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