On the “Einstein–Gauss–Bonnet gravity in four dimension”

To ensure the existence of a well defined linearized gravitational wave equation, we show that the spacetimes in the so-called “Einstein–Gauss–Bonnet gravity in four dimension” have to be locally conformally flat.

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Bibliographische Detailangaben
Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2022-02, Vol.82 (2), p.1-5, Article 124
Hauptverfasser:	Cao, Li-Ming, Wu, Liang-Bi
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Elementary Particles Gravitational waves Hadrons Heavy Ions Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article - Theoretical Physics String Theory Wave equations
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Beschreibung
Zusammenfassung:	To ensure the existence of a well defined linearized gravitational wave equation, we show that the spacetimes in the so-called “Einstein–Gauss–Bonnet gravity in four dimension” have to be locally conformally flat.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-022-10079-5