A first-order approach to conformal gravity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00502100" target="_blank" >RIV/68378271:_____/17:00502100 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1361-6382/aa944f" target="_blank" >http://dx.doi.org/10.1088/1361-6382/aa944f</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6382/aa944f" target="_blank" >10.1088/1361-6382/aa944f</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A first-order approach to conformal gravity

Popis výsledku v původním jazyce

We investigate whether a spontaneously-broken gauge theory of the group SU(2, 2) may be a viable alternative to general relativity. The basic ingredients of the theory are an SU(2, 2) gauge field Aμ and a Higgs field W in the adjoint representation of the group with the Higgs field producing the symmetry breaking SU(2, 2) SO(1, 3) -> SO(1, 1). The action for gravity is polynomial in {Aμ,W} and the field equations are first-order in derivatives of these fields. The new SO(1, 1) symmetry in the gravitational sector is interpreted in terms of an emergent local scale symmetry and the existence of ‘conformalized’ general relativity and fourth-order Weyl conformal gravity as limits of the theory is demonstrated. Maximally symmetric spacetime solutions to the full theory are found and stability of the theory around these solutions is investigated.

Název v anglickém jazyce

A first-order approach to conformal gravity

Popis výsledku anglicky

We investigate whether a spontaneously-broken gauge theory of the group SU(2, 2) may be a viable alternative to general relativity. The basic ingredients of the theory are an SU(2, 2) gauge field Aμ and a Higgs field W in the adjoint representation of the group with the Higgs field producing the symmetry breaking SU(2, 2) SO(1, 3) -> SO(1, 1). The action for gravity is polynomial in {Aμ,W} and the field equations are first-order in derivatives of these fields. The new SO(1, 1) symmetry in the gravitational sector is interpreted in terms of an emergent local scale symmetry and the existence of ‘conformalized’ general relativity and fourth-order Weyl conformal gravity as limits of the theory is demonstrated. Maximally symmetric spacetime solutions to the full theory are found and stability of the theory around these solutions is investigated.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Classical and Quantum Gravity

ISSN

0264-9381

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

42

Strana od-do

—

Kód UT WoS článku

000415829200001

EID výsledku v databázi Scopus

2-s2.0-85038261327