Zobrazeno 1 - 10
of 80
pro vyhledávání: '"P. Marios Petropoulos"'
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
Autor:
Andrea Campoleoni, Arnaud Delfante, Simon Pekar, P. Marios Petropoulos, David Rivera-Betancour, Matthieu Vilatte
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-46 (2023)
Abstract Ricci-flat solutions to Einstein’s equations in four dimensions are obtained as the flat limit of Einstein spacetimes with negative cosmological constant. In the limiting process, the anti-de Sitter energy-momentum tensor is expanded in La
Externí odkaz:
https://doaj.org/article/b2e23703f2f54495814cbe0a127c89d6
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 7, Pp 1-49 (2023)
Abstract We unravel the boundary manifestation of Ehlers’ hidden Möbius symmetry present in four-dimensional Ricci-flat spacetimes that enjoy a time-like isometry and are Petrov-algebraic. This is achieved in a designated gauge, shaped in the spir
Externí odkaz:
https://doaj.org/article/0b0c8c77a7bd4fb5ab621ec7ace7976a
Autor:
Andrea Campoleoni, Luca Ciambelli, Arnaud Delfante, Charles Marteau, P. Marios Petropoulos, Romain Ruzziconi
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-47 (2022)
Abstract Relaxing the Bondi gauge, the solution space of three-dimensional gravity in the metric formulation has been shown to contain an additional free function that promotes the boundary metric to a Lorentz or Carroll frame, in asymptotically AdS
Externí odkaz:
https://doaj.org/article/2e0a30f5f7cb4aa1bd735eb351a81f4c
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-94 (2022)
Abstract We comprehensively study Galilean and Carrollian hydrodynamics on arbitrary backgrounds, in the presence of a matter/charge conserved current. For this purpose, we follow two distinct and complementary paths. The first is based on local inva
Externí odkaz:
https://doaj.org/article/2ba093411aec4c1d903ab1604becbac5
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-39 (2020)
Abstract Solutions to Einstein’s vacuum equations in three dimensions are locally maximally symmetric. They are distinguished by their global properties and their investigation often requires a choice of gauge. Although analyses of this sort have b
Externí odkaz:
https://doaj.org/article/c903055efdc447e580fdcd0098147ae4
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 6, Pp 1-40 (2019)
Abstract We determine a consistent phase space for a theory consisting in the Einstein-Hilbert action coupled to matter fields (dilaton, one-form, two-form) and containing three-dimensional black strings (the Horne-Horowitz solution and generalizatio
Externí odkaz:
https://doaj.org/article/639c5617d3014e4ea887c175131c4a41
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-32 (2018)
Abstract We consider partial supersymmetry breaking in N=2 $$ \mathcal{N}=2 $$ supergravity coupled to a single vector and a single hypermultiplet. This breaking pattern is in principle possible if the quaternion-Kähler space of the hypermultiplet a
Externí odkaz:
https://doaj.org/article/a0a658157c3040cba196856e414c8589
Autor:
Luca Ciambelli, Charles Marteau, Anastasios C. Petkou, P. Marios Petropoulos, Konstantinos Siampos
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 7, Pp 1-46 (2018)
Abstract We show that a holographic description of four-dimensional asymptotically locally flat spacetimes is reached smoothly from the zero-cosmological-constant limit of anti-de Sitter holography. To this end, we use the derivative expansion of flu
Externí odkaz:
https://doaj.org/article/ee515f7c92584489b6eb63736aec05bd
Autor:
Andrea Campoleoni, Luca Ciambelli, Charles Marteau, P. Marios Petropoulos, Konstantinos Siampos
Publikováno v:
Nuclear Physics B, Vol 946, Iss , Pp - (2019)
We describe the dynamics of two-dimensional relativistic and Carrollian fluids. These are mapped holographically to three-dimensional locally anti-de Sitter and locally Minkowski spacetimes, respectively. To this end, we use Eddington–Finkelstein c
Externí odkaz:
https://doaj.org/article/4bc6eb90584c4957ac9709af1b0bc8cf