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Quantum properties of fermionic fields in multi-event horizon spacetime
We investigated the properties of quantum entanglement and mutual information in the multi-event horizon Schwarzschild-de Sitter (SdS) spacetime for...
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Gaussian quantum steering in multi-event horizon spacetime
We study Gaussian quantum steering in the Schwarzschild–de Sitter (SdS) spacetime that is endowed with both a black hole event horizon (BEH) and a...
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Uniqueness of the extremal Schwarzschild de Sitter spacetime
We prove that any analytic vacuum spacetime with a positive cosmological constant in four and higher dimensions, that contains a static extremal...
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Thermodynamics of multi-horizon spacetimes
There exist several well-established procedures for computing thermodynamics for a single horizon spacetime. However, for a spacetime with...
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Does Hawking effect always degrade fidelity of quantum teleportation in Schwarzschild spacetime?
Previous studies have shown that the Hawking effect always destroys quantum correlations and the fidelity of quantum teleportation in the...
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Holography and correlation functions of huge operators: spacetime bananas
We initiate the study of holographic correlators for operators whose dimension scales with the central charge of the CFT. Differently from light...
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What lies beyond the horizon of a holographic p-wave superconductor
We study the planar anti-de Sitter black hole in the p-wave holographic superconductor model. We identify a critical coupling value which determines...
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Horizons and correlation functions in 2D Schwarzschild-de Sitter spacetime
Two-dimensional Schwarzschild-de Sitter is a convenient spacetime in which to study the effects of horizons on quantum fields since the spacetime...
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Chaotic motion of scalar particle coupling to Chern–Simons invariant in the stationary axisymmetric Einstein–Maxwell dilaton black hole spacetime
We investigate the motion of a test scalar particle coupling to the Chern–Simons (CS) invariant in the background of a stationary axisymmetric black...
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Static near-horizon geometries and rigidity of quasi-Einstein manifolds
Static vacuum near-horizon geometries are solutions ( M , g , X ) of a certain quasi-Einstein equation on a closed manifold M , where g is a Riemannian...
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Multi-brane cosmology
5D warped extra dimension models with multiple 3-branes can naturally realize multiple hierarchical mass scales which are ubiquitous in physics...
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Towards communication in a curved spacetime geometry
The current race in quantum communication – endeavouring to establish a global quantum network – must account for special and general relativistic...
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Holographic spacetime, black holes and quantum error correcting codes: a review
This article reviews the progress in our understanding of the reconstruction of the bulk spacetime in the holographic correspondence from the dual...
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Towards the black hole uniqueness: transverse deformations of the extremal Reissner-Nordström-(A)dS horizon
We study all transverse deformations of the extremal Reissner-Nordström–(A)dS horizon in the Einstein-Maxwell theory. No symmetry assumptions are...
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Metric fluctuations in higher-dimensional black holes
We investigated the impact of metric fluctuations on the higher-dimensional black hole geometry. We generalized the four-dimensional model to higher...
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Chaotic motion of scalar particle coupling to Chern–Simons invariant in Kerr black hole spacetime
We present firstly the equation of motion for the test scalar particle coupling to the Chern–Simons invariant in Kerr black hole spacetime by the...
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On the Dirac operator for a test electron in a Reissner–Weyl–Nordström black hole spacetime
The present paper studies the Dirac Hamiltonian of a test electron with a domain of bi-spinor wave functions supported on the static region inside...
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A vacuum solution of modified Einstein equations based on fractional calculus
In this work, we construct a modified version of the Einstein field equations for a vacuum and spherically symmetric spacetime in terms of the...
