Beyond complex Langevin equations : from simple examples to positive representation of Feynman path integrals directly in the Minkowski time

2016
journal article
article
14
cris.lastimport.wos2024-04-09T23:56:56Z
dc.abstract.enA positive representation for an arbitrary complex, gaussian weight is derived and used to construct a statistical formulation of gaussian path integrals directly in the Minkowski time. The positivity of Minkowski weights is achieved by doubling the number of real variables. The continuum limit of the new representation exists only if some of the additional couplings tend to infinity and are tuned in a specific way. The construction is then successfully applied to three quantum mechanical examples including a particle in a constant magnetic field — a simplest prototype of a Wilson line. Further generalizations are shortly discussed and an intriguing interpretation of new variables is alluded to.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorWosiek, Jacek - 132740 pl
dc.date.accessioned2017-02-08T11:54:30Z
dc.date.available2017-02-08T11:54:30Z
dc.date.issued2016pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number4pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume2016pl
dc.identifier.articleid146pl
dc.identifier.doi10.1007/JHEP04(2016)146pl
dc.identifier.eissn1029-8479pl
dc.identifier.eissn1127-2236pl
dc.identifier.issn1126-6708pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/37312
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.source.integratorfalse
dc.subject.enfield theories in lower dimensionspl
dc.subject.enlattice quantum field theorypl
dc.subject.enstochastic processespl
dc.subject.en’t Hooft and Polyakov loopspl
dc.subject.enWilsonpl
dc.subtypeArticlepl
dc.titleBeyond complex Langevin equations : from simple examples to positive representation of Feynman path integrals directly in the Minkowski timepl
dc.title.journalThe Journal of High Energy Physicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T23:56:56Z
dc.abstract.enpl
A positive representation for an arbitrary complex, gaussian weight is derived and used to construct a statistical formulation of gaussian path integrals directly in the Minkowski time. The positivity of Minkowski weights is achieved by doubling the number of real variables. The continuum limit of the new representation exists only if some of the additional couplings tend to infinity and are tuned in a specific way. The construction is then successfully applied to three quantum mechanical examples including a particle in a constant magnetic field — a simplest prototype of a Wilson line. Further generalizations are shortly discussed and an intriguing interpretation of new variables is alluded to.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Wosiek, Jacek - 132740
dc.date.accessioned
2017-02-08T11:54:30Z
dc.date.available
2017-02-08T11:54:30Z
dc.date.issuedpl
2016
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
4
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
2016
dc.identifier.articleidpl
146
dc.identifier.doipl
10.1007/JHEP04(2016)146
dc.identifier.eissnpl
1029-8479
dc.identifier.eissnpl
1127-2236
dc.identifier.issnpl
1126-6708
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/37312
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.source.integrator
false
dc.subject.enpl
field theories in lower dimensions
dc.subject.enpl
lattice quantum field theory
dc.subject.enpl
stochastic processes
dc.subject.enpl
’t Hooft and Polyakov loops
dc.subject.enpl
Wilson
dc.subtypepl
Article
dc.titlepl
Beyond complex Langevin equations : from simple examples to positive representation of Feynman path integrals directly in the Minkowski time
dc.title.journalpl
The Journal of High Energy Physics
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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