Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Olivera Mišković"'
Autor:
Olivera Mišković, Rodrigo Olea, P. Marios Petropoulos, David Rivera-Betancour, Konstantinos Siampos
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-22 (2023)
Abstract In three-dimensional pseudo-Riemannian manifolds, the Cotton tensor arises as the variation of the gravitational Chern-Simons action with respect to the metric. It is Weyl-covariant, symmetric, traceless and covariantly conserved. Performing
Externí odkaz:
https://doaj.org/article/867211bddf2946c8ae6917df448dd727
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-28 (2023)
Abstract We discuss the emergence of a new symmetry generator in a Hamiltonian realisation of four-dimensional gauge theories in the flat space foliated by retarded (advanced) time. It generates an asymptotic symmetry that acts on the asymptotic fiel
Externí odkaz:
https://doaj.org/article/5ccf1f26ec5446dc9afd02667aaae2dd
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-38 (2022)
Abstract We study spontaneous scalarization of electrically charged extremal black holes in D ≥ 4 spacetime dimensions. Such a phenomenon is caused by the symmetry breaking due to quartic interactions of the scalar — Higgs potential and Stueckelb
Externí odkaz:
https://doaj.org/article/80645f1a391f4320aff42f9d005b3b97
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-75 (2021)
Abstract We study static black hole solutions with locally spherical horizons coupled to non-Abelian field in N $$ \mathcal{N} $$ = 4 Chern-Simons AdS5 supergravity. They are governed by three parameters associated to the mass, axial torsion and ampl
Externí odkaz:
https://doaj.org/article/3dbe83ccede54ac9b93b846ec034676d
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 8, Pp 1-52 (2020)
Abstract We show that the Kounterterms for pure AdS gravity in arbitrary even dimensions coincide with the boundary counterterms obtained through holographic renormalization if and only if the boundary Weyl tensor vanishes. In particular, the Kounter
Externí odkaz:
https://doaj.org/article/dda1e09930f042429cc5546ce0825a12
Autor:
Patrick Concha, Nelson Merino, Olivera Miskovic, Evelyn Rodríguez, Patricio Salgado-Rebolledo, Omar Valdivia
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 10, Pp 1-22 (2018)
Abstract We study a three-dimensional Chern-Simons gravity theory based on the Maxwell algebra. We find that the boundary dynamics is described by an enlargement and deformation of the bms3 algebra with three independent central charges. This symmetr
Externí odkaz:
https://doaj.org/article/4a78b064b8a74290866301a5b1eba9d0
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-20 (2018)
Abstract We calculate the entropy of a static extremal black hole in 4D gravity, non-linearly coupled to a massive Stueckelberg scalar. We find that the scalar field does not allow the black hole to be magnetically charged. We also show that the syst
Externí odkaz:
https://doaj.org/article/7ef3d8bbb56d43f6b99342cdd368af59
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 11, Pp 1-22 (2017)
Abstract It is shown that the notion of Conformal Mass can be defined within a given anti-de Sitter (AdS) branch of a Lovelock gravity theory as long as the corresponding vacuum is not degenerate. Indeed, conserved charges obtained by the addition of
Externí odkaz:
https://doaj.org/article/53a1042e7f6c43c1aa2a3a754e81044c
Publikováno v:
Physics Letters B, Vol 767, Iss C, Pp 258-263 (2017)
We compute the vacuum energy of three-dimensional asymptotically flat space based on a Chern–Simons formulation for the Poincaré group. The equivalent action is nothing but the Einstein–Hilbert term in the bulk plus half of the Gibbons–Hawking
Externí odkaz:
https://doaj.org/article/aa4b75db48b34c82b905db97def6fae7
Autor:
Olivera Mišković, Tatjana Vukašinac
Publikováno v:
Journal of Physics: Conference Series; 2018, Vol. 1010 Issue 1, p1-1, 1p