106 citations
- Vidyasagar UniversityIN26 papers
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4 papers · 1 filter
String Black Holes as Particle Accelerators to Arbitrarily High Energy
Parthapratim Pradhan
We show that an extremal Gibbons-Maeda-Garfinkle-Horowitz-Strominger black hole may act as a particle accelerator with arbitrarily high energy when two uncharged particles falling…
Area Products and Mass Formula for Kerr-Newman-Taub-NUT Space-time
Parthapratim Pradhan
We derive area product, entropy product, area sum and entropy sum of the event horizon and Cauchy horizons for Kerr-Newman-Taub-NUT(Newman-Unti-Tamburino) black hole in four dimens…
Black Hole Interior Mass Formula
Parthapratim Pradhan
We argue by explicit computations that, although the area product, horizon radii product, entropy product and \emph {irreducible mass product} of the event horizon and Cauchy horiz…
Lyapunov Exponent and Charged Myers Perry Spacetimes
Partha Pratim Pradhan
We compute the proper time Lyapunov exponent for charged Myers Perry black hole spacetime and investigate the instability of the equatorial circular geodesics (both timelike and nu…