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New action for cosmology

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New action for cosmology. / Sloan, David.

In: Physical Review D, Vol. 103, No. 4, 043524, 15.02.2021.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Sloan, D 2021, 'New action for cosmology', Physical Review D, vol. 103, no. 4, 043524. https://doi.org/10.1103/PhysRevD.103.043524

APA

Vancouver

Sloan D. New action for cosmology. Physical Review D. 2021 Feb 15;103(4). 043524. https://doi.org/10.1103/PhysRevD.103.043524

Author

Sloan, David. / New action for cosmology. In: Physical Review D. 2021 ; Vol. 103, No. 4.

Bibtex

@article{b9358258f3c64a60978c8a39a101b3d4,
title = "New action for cosmology",
abstract = "We present a new action which reproduces the cosmological sector of general relativity in both the Friedmann-Lema{\^i}tre-Robertson-Walker and Bianchi models. This action makes no reference to the scale factor and is of a frictional type first examined by Herglotz. We demonstrate that the extremization of this action reproduces the usual dynamics of physical observables, and the symplectification of this action is the Einstein-Hilbert action for cosmological models. We end by discussing some of the increased explanatory power produced by considering the reduced physical ontology resulting from eliminating scale.",
author = "David Sloan",
note = "{\textcopyright} 2021 American Physical Society",
year = "2021",
month = feb,
day = "15",
doi = "10.1103/PhysRevD.103.043524",
language = "English",
volume = "103",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - New action for cosmology

AU - Sloan, David

N1 - © 2021 American Physical Society

PY - 2021/2/15

Y1 - 2021/2/15

N2 - We present a new action which reproduces the cosmological sector of general relativity in both the Friedmann-Lemaître-Robertson-Walker and Bianchi models. This action makes no reference to the scale factor and is of a frictional type first examined by Herglotz. We demonstrate that the extremization of this action reproduces the usual dynamics of physical observables, and the symplectification of this action is the Einstein-Hilbert action for cosmological models. We end by discussing some of the increased explanatory power produced by considering the reduced physical ontology resulting from eliminating scale.

AB - We present a new action which reproduces the cosmological sector of general relativity in both the Friedmann-Lemaître-Robertson-Walker and Bianchi models. This action makes no reference to the scale factor and is of a frictional type first examined by Herglotz. We demonstrate that the extremization of this action reproduces the usual dynamics of physical observables, and the symplectification of this action is the Einstein-Hilbert action for cosmological models. We end by discussing some of the increased explanatory power produced by considering the reduced physical ontology resulting from eliminating scale.

U2 - 10.1103/PhysRevD.103.043524

DO - 10.1103/PhysRevD.103.043524

M3 - Journal article

VL - 103

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 4

M1 - 043524

ER -