Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Maceda, Marco"'
Autor:
Maceda, Marco Díaz, Sabín, Carlos
We use digital quantum computing to simulate the creation of particles in a dynamic spacetime. We consider a system consisting of a minimally coupled massive quantum scalar field in a spacetime undergoing homogeneous and isotropic expansion, transiti
Externí odkaz:
http://arxiv.org/abs/2410.02412
We study numerically an $s$-wave holographic superconductor from an anti-de Sitter-Einstein-Born-Infeld black hole with backreaction in the context of the AdS/CFT correspondence. By introducing a parameter $G$ to tune the effects of the backreaction,
Externí odkaz:
http://arxiv.org/abs/2404.14787
Publikováno v:
Phys. Rev. D 110, 024063 (2024)
It has been established that the famous three-dimensional Thurston geometries have four intrinsically Lorentzian analogs. We explore these spacetimes in three-dimensional general relativity nonminimally coupled to a scalar field together with electro
Externí odkaz:
http://arxiv.org/abs/2311.12985
Publikováno v:
JHEP 09 (2021) 104
Recent work has shown the existence of a unique nonlinear extension of electromagnetism which preserves conformal symmetry and allows for the freedom of duality rotations. Moreover, black holes and gravitational waves have been found to exist in this
Externí odkaz:
http://arxiv.org/abs/2012.03416
Publikováno v:
Phys. Lett. B 812 (2021) 136011
Maxwell's equations are invariant under both duality rotations and conformal transformations. Recently Bandos, Lechner, Sorokin, and Townsend have found a nonlinear generalisation of electrodynamics which possesses both of these symmetries. We couple
Externí odkaz:
http://arxiv.org/abs/2011.10836
Using a noncommutative inspired Einstein-Euler-Heisenberg black hole, we analyse the associated graviton and light rings that together with the event horizon, provide the necessary components to build its shadow. An analysis of the angular radius of
Externí odkaz:
http://arxiv.org/abs/2008.07040
Publikováno v:
Phys. Rev. D 101, 044008 (2020)
We construct a deformed adS-Einstein-Born-Infeld black hole from noncommutative gauge theory of gravity and determine the metric coefficients up to second order on the noncommutative parameter. We analyse the modifications on the thermodynamical prop
Externí odkaz:
http://arxiv.org/abs/1909.08001
Autor:
Maceda, Marco, Villafuerte-Lara, Jairo
We analyse a modified Dirac equation based on a noncommutative structure in phase space. The noncommutative structure induces generalised momenta and contributions to the energy levels of the standard Dirac equation. Using techniques of perturbation
Externí odkaz:
http://arxiv.org/abs/1909.06311
Publikováno v:
SIGMA 15 (2019), 073, 16 pages
We construct a noncommutative K\"ahler manifold based on a non-linear perturbations of Moyal integrable deformations of $D=4$ self-dual gravity. The deformed K\"ahler manifold preserves all the properties of the commutative one, and we obtain the ass
Externí odkaz:
http://arxiv.org/abs/1904.09323
Autor:
Maceda, Marco, Patiño-López, Sergio
Using a noncommutative inspired anti-de Sitter-Einstein-Born-Infeld black hole with both non-commutative mass and charge distributions, we analyse a holographic superconductor in the context of the AdS/CFT correspondence. We show that the coupling of
Externí odkaz:
http://arxiv.org/abs/1903.02132