158 citations · 1.8k across the 69 of their papers we have counts for
6 papers · 1 filter
Entanglement dynamics following a sudden quench: an exact solution
Supriyo Ghosh, Kumar S. Gupta, Shashi C. L. Srivastava
We present an exact and fully analytical treatment of the entanglement dynamics for an isolated system of coupled oscillators following a sudden quench of the system parameters…
Conformal quantum mechanics and holography in noncommutative space-time
Kumar S. Gupta, E. Harikumar, Zuhair N. S.
We analyze the effects of noncommutativity in conformal quantum mechanics (CQM) using the -deformed space-time as a prototype. Upto the first order in the deformation parameter,…
Emergence of Coherent Nanoscale Structures in Carbon Nantotubes
Siddhartha Sen, Kumar S. Gupta
Recently unusual properties of water in single-walled carbon nanotubes (CNT) with diameters ranging from 1.05 nm to 1.52 nm were observed. It was found that water in the CNT remain…
Twisted statistics and the structure of Lie-deformed Minkowski spaces
Daniel Meljanac, Stjepan Meljanac, Danijel Pikutić +1
We show that the realizations of noncommutative coordinates that are linear in the Lorentz generators form a closed Lie algebra under certain conditions. The star product and the c…
Orthogonality catastrophe and fractional exclusion statistics
Filiberto Ares, Kumar S. Gupta, Amilcar R. de Queiroz
We show that the -particle Sutherland model with inverse-square and harmonic interactions exhibits orthogonality catastrophe. For a fixed value of the harmonic coupling, the ove…
Noncommutative duality and fermionic quasinormal modes of the BTZ black hole
Kumar S. Gupta, Tajron Jurić, Andjelo Samsarov
We analyze the fermionic quasinormal modes of the BTZ black hole in the presence of space-time noncommutativity. Our analysis exploits a duality between a spinless and spinning BTZ…