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Bibliographic description



title:	Simulations of gaussian systems in Minkowski time
author:	Ruba Błażej , Wosiek Jacek
journal title:	POS Proceedings of Science
title of volume:	The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018)
volume:	334
date of publication :	2019
article ID:	241
eISSN:	1824-8039
DOI:	10.22323/1.334.0241
language:	English
journal language:	English
abstract in English:	Many research programs aiming to deal with the sign problem were proposed since the advent of lattice field theory. Several of these try to achieve this by exploiting properties of analytic functions. This is also the case for our study. There auxiliary complex variables are introduced and desired weight is obtained after integrating them out. In this note we clarify conceptual difficulties with this procedure encountered in previous works. In the process we observe an exciting connection with thimbles and discover an interesting hidden symmetry present in the problem. Problem of negative eigenvalues of the action will be revisited and considered from a different perspective. As a byproduct we perform simulations of simple quantum systems directly in Minkowski time.
conference:	The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018); 2018-07-22; 2018-07-28; Michigan; USA; ; indeksowana w Scopus; ;
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	conference proceedings

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