Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Godet, Victor"'
Entanglement asymmetry is a measure of symmetry breaking in quantum subsystems, inspired by quantum information theory, particularly suited to study out-of-equilibrium states. We study the entanglement asymmetry of a class of excited "coherent states
Externí odkaz:
http://arxiv.org/abs/2407.07969
Autor:
Godet, Victor
We revisit pure quantum cosmology in three dimensions. The Wheeler-DeWitt equation can be solved perturbatively and the dynamics reduces to a particle on moduli space. Its time evolution is equivalent to the $T\overline{T}$ deformation. Focusing on s
Externí odkaz:
http://arxiv.org/abs/2405.09833
Publikováno v:
JHEP 09 (2023) 087
Driven quantum systems exhibit a large variety of interesting and sometimes exotic phenomena. Of particular interest are driven conformal field theories (CFTs) which describe quantum many-body systems at criticality. In this paper, we develop both a
Externí odkaz:
http://arxiv.org/abs/2306.00099
We study the natural norm on the space of solutions to the Wheeler-DeWitt equation in an asymptotically de Sitter spacetime. We propose that the norm is obtained by integrating the squared wavefunctional over field configurations and dividing by the
Externí odkaz:
http://arxiv.org/abs/2303.16316
We obtain solutions of the Wheeler-DeWitt equation with positive cosmological constant for a closed universe in the large-volume limit. We argue that this space of solutions provides a complete basis for the Hilbert space of quantum gravity in an asy
Externí odkaz:
http://arxiv.org/abs/2303.16315
We study a two-site Sachdev-Ye-Kitaev model with complex couplings and a weak inter-site interaction. At low temperatures, the system is dual to a Euclidean wormhole in Jackiw-Teitelboim gravity plus matter. Interestingly, the energy spectrum becomes
Externí odkaz:
http://arxiv.org/abs/2204.08558
We compute the logarithmic correction to the entropy of asymptotically AdS$_4$ black holes in minimal ${\cal N}=2$ gauged supergravity. We show that for extremal black holes the logarithmic correction computed in the near horizon geometry agrees with
Externí odkaz:
http://arxiv.org/abs/2112.09444
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 a set of constraints as a consequence o
Externí odkaz:
http://arxiv.org/abs/2107.14802
Publikováno v:
SciPost Phys. 12, 135 (2022)
We find half-wormhole solutions in Jackiw-Teitelboim gravity by allowing the geometry to end on a spacetime D-brane with specific boundary conditions. This theory also contains a Euclidean wormhole which leads to a factorization problem. We propose t
Externí odkaz:
http://arxiv.org/abs/2107.07720
Autor:
Godet, Victor, Marteau, Charles
We study $\widehat{\text{CGHS}}$ gravity, a variant of the matterless Callan-Giddings-Harvey-Strominger model. We show that it describes a universal sector of the near horizon perturbations of non-extremal black holes in higher dimensions. In many re
Externí odkaz:
http://arxiv.org/abs/2103.13422