Holography from the Wheeler-DeWitt equation
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2022)019
Abstract: Abstract In a theory of quantum gravity, states can be represented as wavefunctionals that assign an amplitude to a given configuration of matter fields and the metric on a spatial slice. These wavefunctionals must obey… read more here.
Keywords: theory; holography wheeler; dewitt equation; wheeler dewitt ... See more keywords
Euclidean wormholes in Hořava-Lifshitz gravity
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.084048
Abstract: We study Euclidean wormholes in the framework of the Horava-Lifshitz theory of gravity. Euclidean wormholes first appeared in the Euclidean path integral approach to quantum gravity. In a more general way, Hawking and Page interpreted… read more here.
Keywords: dewitt equation; euclidean wormholes; gravity; gravity euclidean ... See more keywords
From path integrals to the Wheeler-DeWitt equation: Time evolution in spacetimes with a spatial boundary
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.106005
Abstract: We reexamine the relationship between the path integral and canonical formulation of quantum general relativity. In particular, we present a formal derivation of the Wheeler-DeWitt equation from the path integral for quantum general relativity by… read more here.
Keywords: time evolution; wheeler dewitt; dewitt equation; spatial boundary ... See more keywords
Anisotropic quantum cosmology with minimally coupled scalar field
Sign Up to like & getrecommendations! Published in 2019 at "Modern Physics Letters A"
DOI: 10.1142/s0217732319502833
Abstract: In this paper, we perform the Wheeler–DeWitt quantization for Bianchi type I anisotropic cosmological model in the presence of a scalar field minimally coupled to the Einstein–Hilbert gravity theory. We also consider the cosmological (perfect) fluid… read more here.
Keywords: quantum cosmology; minimally coupled; scalar field; cosmology ... See more keywords
Is the Wheeler–DeWitt equation more fundamental than the Schrödinger equation?
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271818410043
Abstract: The Wheeler–DeWitt equation was proposed 50 years ago and until now it is the cornerstone of most approaches to quantization of gravity. One can find in the literature, the opinion that the Wheeler–DeWitt equation is… read more here.
Keywords: equation; equation fundamental; wheeler dewitt; dewitt equation ... See more keywords