Jagiellonian University Repository

Pseudo-Cartesian coordinates in a model of Causal Dynamical Triangulations


Pseudo-Cartesian coordinates in a model of Causal Dynamical Triangulations

Show full item record

dc.contributor.author Ambjorn, J. pl
dc.contributor.author Drogosz, Zbigniew [USOS160113] pl
dc.contributor.author Gizbert-Studnicki, Jakub [SAP14011527] pl
dc.contributor.author Görlich, Andrzej [SAP13902753] pl
dc.contributor.author Jurkiewicz, Jerzy [SAP11006413] pl
dc.date.accessioned 2019-10-31T14:01:22Z
dc.date.available 2019-10-31T14:01:22Z
dc.date.issued 2019 pl
dc.identifier.issn 0550-3213 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/86276
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/pl/legalcode *
dc.title Pseudo-Cartesian coordinates in a model of Causal Dynamical Triangulations pl
dc.type JournalArticle pl
dc.abstract.en Causal Dynamical Triangulations is a non-perturbative quantum gravity model, defined with a lattice cut-off. The model can be viewed as defined with a proper time but with no reference to any three-dimensional spatial background geometry. It has four phases, depending on the parameters (the coupling constants) of the model. The particularly interesting behavior is observed in the so-called de Sitter phase, where the spatial three-volume distribution as a function of proper time has a semi-classical behavior which can be obtained from an effective mini-superspace action. In the case of the three-sphere spatial topology, it has been difficult to extend the effective semi-classical description in terms of proper time and spatial three-volume to include genuine spatial coordinates, partially because of the background independence inherent in the model. However, if the spatial topology is that of a three-torus, it is possible to define a number of new observables that might serve as spatial coordinates as well as new observables related to the winding numbers of the three-dimensional torus. The present paper outlines how to define the observables, and how they can be used in numerical simulations of the model. pl
dc.description.volume 943 pl
dc.identifier.doi 10.1016/j.nuclphysb.2019.114626 pl
dc.identifier.eissn 1873-1562 pl
dc.title.journal Nuclear Physics. B pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.identifier.articleid 114626 pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
dc.identifier.project ROD UJ / OP pl
.pointsMNiSW [2019 A]: 140

Files in this item

This item appears in the following Collection(s)

Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa