Title : ( Quasilocal conservation laws in cosmology: A first look )
Authors: Marius Oltean , Hossein Bazrafshan Moghaddam , Richard J. Epp ,
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Abstract
Quasilocal definitions of stress-energy-momentum---that is, in the form of boundary densities (in lieu of local volume densities)---have proven generally very useful in formulating and applying conservation laws in general relativity. In this essay, we take a first basic look into applying these to cosmology, specifically using the Brown-York quasilocal stress-energy-momentum tensor for matter and gravity combined. We compute this tensor and present some simple results for a flat FLRW spacetime with a perfect fluid matter source.
Keywords
, Cosmology; General Relativity; Conservation Laws; Quasilocal frames; Brown, York Strees, Energy definition; Cosmological Constant; GRF
@article{paperid:1082631,
author = {Marius Oltean and Bazrafshan Moghaddam, Hossein and Richard J. Epp},
title = {Quasilocal conservation laws in cosmology: A first look},
journal = {International Journal of Modern Physics D},
year = {2020},
volume = {29},
number = {14},
month = {December},
issn = {0218-2718},
keywords = {Cosmology; General Relativity; Conservation Laws; Quasilocal frames; Brown-York Strees-Energy definition; Cosmological Constant; GRF},
}
%0 Journal Article
%T Quasilocal conservation laws in cosmology: A first look
%A Marius Oltean
%A Bazrafshan Moghaddam, Hossein
%A Richard J. Epp
%J International Journal of Modern Physics D
%@ 0218-2718
%D 2020
