128 citations · 993 across the 43 of their papers we have counts for
5 papers · 1 filter
Relativistic Thermodynamics with an Invariant Energy Scale
Sudipta Das, Subir Ghosh, Dibakar Roychowdhury
A particular framework for Quantum Gravity is the Doubly Special Relativity (DSR) formalism that introduces a new observer independent scale, the Planck energy. Our aim in this pap…
Relativistic Spinning Particle in a Non-Commutative Extended Spacetime
Sudipta Das, Subir Ghosh
The relativistic spinning particle model, proposed in [3,4], is analyzed in a Hamiltonian framework. The spin is simulated by extending the configuration space by introducing a lig…
Generalized particle dynamics in anti de Sitter spaces: A source for dark energy
Sudipta Das, Subir Ghosh, Jan-Willem van Holten +1
We consider the generalized particle dynamics, proposed by us, in brane world formalisms for an asymptotically anti de Sitter background. The present framework results in a new mod…
Generalized particle dynamics: modifying the motion of particles and branes
Sudipta Das, Subir Ghosh, Jan-Willem van Holten +1
We construct a generalized dynamics for particles moving in a symmetric space-time, i.e. a space-time admitting one or more Killing vectors. The generalization implies that the eff…
Non-Minimal Quintessence With Nearly Flat Potential
Anjan A Sen, Gaveshna Gupta, Sudipta Das
We consider Brans-Dicke type nonminimally coupled scalar field as a candidate for dark energy. In the conformally transformed Einstein's frame, our model is similar to {\it coupled…