Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Daeho Ro"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-15 (2020)
Abstract We investigate the time-dependent entanglement entropy in the AdS space with a dS boundary which represents an expanding spacetime. On this time-dependent spacetime, we show that the Ryu–Takayanagi formula, which is usually valid in the st
Externí odkaz:
https://doaj.org/article/d2b8fcafb4df48e3b6864da60e7dfc1b
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-23 (2018)
Abstract We holographically investigate the renormalization group flow in a two-dimensional conformal field theory deformed by a relevant operator. If the relevant operator allows another fixed point, the UV conformal field theory smoothly flows to a
Externí odkaz:
https://doaj.org/article/d87d045cb1344e2f8c5229d61d3a4618
Autor:
Bogeun Gwak, Daeho Ro
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 8, Pp 1-12 (2017)
Abstract We investigate the upper limit of the gravitational radiation released upon the collision of two dilatonic black holes by analyzing the Gauss–Bonnet term. Dilatonic black holes have a dilaton hair coupled with this term. Using the laws of
Externí odkaz:
https://doaj.org/article/40a9f27dd9fa498bb9fe3c8647f71ed9
Publikováno v:
Physics Letters B, Vol 762, Iss , Pp 535-542 (2016)
In this paper, we investigate various types of Fubini instantons in the Dilatonic Einstein–Gauss–Bonnet theory of gravitation which describes the decay of the vacuum state at a hilltop potential through tunneling without barrier. It is shown that
Externí odkaz:
https://doaj.org/article/b344c725fddc4972acfe91b241161f6f
Publikováno v:
Physics Letters B, Vol 761, Iss C, Pp 437-443 (2016)
We have studied the instability of charged anti-de Sitter black holes in four- or higher-dimensions under fragmentation. The unstable black holes under fragmentation can be broken into two black holes. Instability depends not only on the mass and cha
Externí odkaz:
https://doaj.org/article/a95ab3dd942249e7803be51a8530a3ee
Autor:
Bogeun Gwak, Daeho Ro
Publikováno v:
Entropy, Vol 19, Iss 12, p 691 (2017)
We investigate herein the spin interaction during collisions between Kerr-(anti-)de Sitter black holes. The spin interaction potential depends on the relative rotation directions of the black holes, and this potential can be released as gravitational
Externí odkaz:
https://doaj.org/article/08fc6a6aae2c4a83b2d9ef1f0197aac5
In this paper, we investigate complex-valued Euclidean wormholes in the Starobinsky inflation. Due to the properties of the concave inflaton potential, the classicality condition at both ends of the wormhole can be satisfied, as long as the initial c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbbb4d98435af28993aa2263c205993e
http://arxiv.org/abs/1904.00199
http://arxiv.org/abs/1904.00199
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-23 (2018)
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-23 (2018)
We holographically investigate the renormalization group flow in a two-dimensional conformal field theory deformed by a relevant operator. If the relevant operator allows another fixed point, the UV conformal field theory smoothly flows to a new IR c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d044d08c5f0949ceee83c817effdb795
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
INSPIRE-HEP
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-15 (2020)
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-15 (2020)
We investigate the holographic quantum entanglement of a visible universe in an inflationary cosmology. To do so, we consider an AdS space with a dS boundary which represents an expanding space in time. In an inflationary cosmology, there exists a na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ab8b5f5ae843c3caf5641405c06331b
http://arxiv.org/abs/1806.01092
http://arxiv.org/abs/1806.01092
We study a hairy black hole solution in the dilatonic Einstein-Gauss-Bonnet theory of gravitation, in which the Gauss-Bonnet term is non-minimally coupled to the dilaton field. Hairy black holes with spherical symmetry seem to be easily constructed w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8457037964b32a0d7c57cdc20920cbc3