279 citations · 2.5k across the 99 of their papers we have counts for
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d-Dimensional Black Hole Entropy Spectrum from Quasi-Normal Modes
Gabor Kunstatter
Starting from recent observations\cite{hod,dreyer1} about quasi-normal modes, we use semi-classical arguments to derive the Bekenstein-Hawking entropy spectrum for -dimensional…
Varying Fine Structure Constant and Black Hole Physics
Saurya Das, Gabor Kunstatter
Recent astrophysical observations suggest that the value of fine structure constant may be slowly increasing with time. This may be due to an increase of or a d…
Anti-deSitter gravitational collapse
V. Husain, G. Kunstatter, B. Preston +1
We describe a formalism for studying spherically symmetric collapse of the massless scalar field in any spacetime dimension, and for any value of the cosmological constant . The…
Discrete Spectra of Charged Black Holes
Andrei Barvinsky, Saurya Das, Gabor Kunstatter
Bekenstein proposed that the spectrum of horizon area of quantized black holes must be discrete and uniformly spaced. We examine this proposal in the context of spherically symmetr…
Rapid Data Search using Adiabatic Quantum Computation
Daria Ahrensmeier, Saurya Das, Randy Kobes +2
We show that by a suitable choice of time-dependent Hamiltonian, the search for a marked item in an unstructured database can be achieved in unit time, using Adiabatic Quantum Comp…
Structured Adiabatic Quantum Search
Daria Ahrensmeier, Saurya Das, Randy Kobes +2
We examine the use of adiabatic quantum algorithms to solve structured, or nested, search problems. We construct suitable time dependent Hamiltonians and derive the computation tim…
Energy and Efficiency of Adiabatic Quantum Search Algorithms
Saurya Das, Randy Kobes, Gabor Kunstatter
We present the results of a detailed analysis of a general, unstructured adiabatic quantum search of a data base of items. In particular we examine the effects on the computati…
Spherically symmetric scalar field collapse in any dimension
M. Birukou, V. Husain, G. Kunstatter +2
We describe a formalism and numerical approach for studying spherically symmetric scalar field collapse for arbitrary spacetime dimension d and cosmological constant Lambda. The pr…