14 citations · 64 across the 14 of their papers we have counts for
3 papers · 1 filter
Quantum Langevin dynamics of a charged particle in a magnetic field : Response function, position-velocity and velocity autocorrelation functions
Suraka Bhattacharjee, Urbashi Satpathi, Supurna Sinha
We use the Quantum Langevin equation as a starting point to study the response function, the position-velocity correlation function and the velocity autocorrelation function of a c…
Soliton-like behaviour in non-integrable systems
Raghavendra Nimiwal, Urbashi Satpathi, Vishal Vasan +1
We present a general scheme for constructing robust excitations (soliton-like) in non-integrable multicomponent systems. By robust, we mean localised excitations that propagate wit…
Measurements and analysis of response function of cold atoms in optical molasses
Subhajit Bhar, Maheswar Swar, Urbashi Satpathi +4
We report our experimental measurements and theoretical analysis of the position response function of a cloud of cold atoms residing in the viscous medium of an optical molasses an…