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6 papers · 2 filters
Naked singularities as particle accelerators
Mandar Patil, Pankaj S. Joshi
We investigate here the particle acceleration by naked singularities to arbitrarily high center of mass energies. Recently it has been suggested that black holes could be used as p…
Collapse and dispersal in massless scalar field models
Swastik Bhattacharya, Rituparno Goswami, Pankaj S. Joshi
The phenomena of collapse and dispersal for a massless scalar field has drawn considerable interest in recent years, mainly from a numerical perspective. We give here a sufficient…
Standard and derived Planck quantities: selected analysis and derivations
Jason R. Buzcyna, C. S. Unnikrishnan, George T. Gillies
We provide an overview of the fundamental units of physical quantities determined naturally by the values of fundamental constants of nature. We discuss a comparison between the 'P…
Precision studies of Casimir force and short-range gravity employing prototypes of interferometric gravitational wave detectors
G. Rajalakshmi, C. S. Unnikrishnan
We discuss experimental schemes to measure the Casimir force and short range forces from hypothetical modified gravity with unprecedented sensitivity using highly sensitive prototy…
The connection between `emergence of time from quantum gravity' and `dynamical collapse of the wave-function in quantum mechanics'
T. P. Singh
There are various reasons to believe that quantum theory could be an emergent phenomenon. Trace Dynamics is an underlying classical dynamics of non-commuting matrices, from which q…
Local symmetries of non-expanding horizons
Rudranil Basu, Ayan Chatterjee, Amit Ghosh
Local symmetries of a non-expanding horizon has been investigated in the 1st order formulation of gravity. When applied to a spherically symmetric isolated horizon only a U(1) subg…