Effective relational dynamics of a nonintegrable cosmological model
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F12%3A00057889" target="_blank" >RIV/00216224:14310/12:00057889 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevD.86.065014" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.86.065014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.86.065014" target="_blank" >10.1103/PhysRevD.86.065014</a>
Alternative languages
Result language
angličtina
Original language name
Effective relational dynamics of a nonintegrable cosmological model
Original language description
We apply the effective approach to evaluating semiclassical relational dynamics to the closed Friedman-Robertson-Walker cosmological model filled with a minimally coupled massive scalar field. This model is interesting for studying relational dynamics ina more general setting because (i) it features a nontrivial coupling of the relational clock to the evolving degrees of freedom, (ii) no temporally global clock variable exists, and (iii) it is nonintegrable, which is typical for generic dynamical systems. The effective approach is especially well geared for addressing the concept of relational evolution in this context, since it enables one to switch between different clocks and yields a consistent (temporally) local time evolution with transient observables so long as semiclassicality holds. We provide evidence that relational evolution in this model universe, while possible for sufficiently semiclassical states, generically breaks down in the region of maximal expansion.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GD202%2F08%2FH072" target="_blank" >GD202/08/H072: Mathematical structures in theoretical physics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
1550-7998
e-ISSN
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Volume of the periodical
86
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
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UT code for WoS article
000308587100008
EID of the result in the Scopus database
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