99 citations · 300 across the 12 of their papers we have counts for
10 papers · 1 filter
Bogoliubov Transformation and Schrodinger Representation on Curved Space
Musfar Muhamed Kozhikkal, Arif Mohd
It is usually accepted that quantum dynamics described by Schrodinger equation that determines the evolution of states from one Cauchy surface to another is unitary. However, it ha…
Higher derivative gravity: field equation as the equation of state
Ramit Dey, Stefano Liberati, Arif Mohd
One of the striking features of general relativity is that the Einstein equation is implied by the Clausius relation imposed on a small patch of locally constructed causal horizon.…
Black hole entropy and Lorentz-diffeomorphism Noether charge
Ted Jacobson, Arif Mohd
We show that, in the first or second order orthonormal frame formalism, black hole entropy is the horizon Noether charge for a combination of diffeomorphism and local Lorentz symme…
Emergent gravitational dynamics in relativistic Bose--Einstein condensate
Alessio Belenchia, Stefano Liberati, Arif Mohd
Analogue models of gravity have played a pivotal role in the past years by providing a test bench for many open issues in quantum field theory in curved spacetime such as the robus…
GR 20 Parallel Session A3: Modified Gravity
Petr Horava, Arif Mohd, Charles M. Melby-Thompson +1
This is the contribution representing Parallel Session A3, on Modified Gravity, in the Proceedings of the GR 20 Conference (July 2013, Warszawa, Poland). It consists of three invit…
Ray tracing Einstein-Æther black holes: Universal versus Killing horizons
Bethan Cropp, Stefano Liberati, Arif Mohd +1
Violating Lorentz-invariance, and so implicitly permitting some form of superluminal communication, necessarily alters the notion of a black hole. Nevertheless, in both Einstein-Æt…
On the thermodynamics of universal horizons in Einstein-Æther theory
Arif Mohd
The theories of gravity which violate local Lorentz invariance do not admit a universal maximum speed of signal-propagation. Different field excitations see a different effective m…
Thermodynamics of Local Causal Horizons
Arif Mohd, Sudipta Sarkar
We propose an expression for the entropy density associated with the Local Causal Horizons in any diffeomorphism invariant theory of gravity. If the black-hole entropy of the theor…
Asymptotically anti de Sitter spacetimes in three dimensions
Luca Bombelli, Arif Mohd
We revisit the asymptotically Anti de Sitter spacetimes in three dimensions. Using the conformal-completion technique, we formulate the boundary conditions in a covariant fashion a…
Membrane paradigm for Einstein-Gauss-Bonnet gravity
Ted Jacobson, Arif Mohd, Sudipta Sarkar
We construct the membrane paradigm for black objects in Einstein-Gauss-Bonnet gravity in spacetime dimensions . As in the case of general relativity, the horizon can be mod…