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Characteristics of the new phase in CDT


Characteristics of the new phase in CDT

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dc.contributor.author Ambjørn, J. pl
dc.contributor.author Gizbert-Studnicki, Jakub [SAP14011527] pl
dc.contributor.author Görlich, Andrzej [SAP13902753] pl
dc.contributor.author Jurkiewicz, Jerzy [SAP11006413] pl
dc.contributor.author Klitgaard, N. pl
dc.contributor.author Loll, R. pl
dc.date.accessioned 2017-06-01T11:21:57Z
dc.date.available 2017-06-01T11:21:57Z
dc.date.issued 2017 pl
dc.identifier.issn 1434-6044 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/41076
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 Characteristics of the new phase in CDT pl
dc.type JournalArticle pl
dc.abstract.en The approach of Causal Dynamical Triangulations (CDT), a candidate theory of nonperturbative quantum gravity in 4D, turns out to have a rich phase structure. We investigate the recently discovered bifurcation phase CbCbC_{b} and relate some of its characteristics to the presence of singular vertices of very high order. The transition lines separating this phase from the "time-collapsed" B-phase and the de Sitter phase CdSCdSC_{dS} are of great interest when searching for physical scaling limits. The work presented here sheds light on the mechanisms behind these transitions. First, we study how the B–CbCbC_{b} transition signal depends on the volume fixing implemented in the simulations, and find results compatible with the previously determined second-order character of the transition. The transition persists in a transfer matrix formulation, where the system’s time extension is taken to be minimal. Second, we relate the new CbCbC_{b}–CdSCdSC_{dS} transition to the appearance of singular vertices, which leads to a direct physical interpretation in terms of a breaking of the homogeneity and isotropy observed in the de Sitter phase when crossing from CdSCdSC_{dS} to the bifurcation phase CbCbC_{b}. pl
dc.description.volume 77 pl
dc.description.number 3 pl
dc.identifier.doi 10.1140/epjc/s10052-017-4710-3 pl
dc.identifier.eissn 1434-6052 pl
dc.title.journal The European Physical Journal. C, Particles and Fields 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 152 pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
dc.identifier.project ROD UJ / P pl
.pointsMNiSW [2017 A]: 40

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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