290 citations · 1.5k across the 43 of their papers we have counts for
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Inhomogeneous quantum diffusion and decay of a meta-stable state
Pulak Kumar Ghosh, Debashis Barik, Deb Shankar Ray
We consider the quantum stochastic dynamics of a system whose interaction with the reservoir is considered to be linear in bath co-ordinates but nonlinear in system co-ordinates. T…
Langevin dynamics with dichotomous noise; direct simulation and applications
Debashis Barik, Pulak Kumar Ghosh, Deb Shankar Ray
We consider the motion of a Brownian particle moving in a potential field and driven by dichotomous noise with exponential correlation. Traditionally, the analytic as well as the n…
Stochastic Energetics of Quantum Transport
Pulak Kumar Ghosh, Deb Shankar Ray
We examine the stochastic energetics of directed quantum transport due to rectification of non-equilibrium thermal fluctuations. We calculate the quantum efficiency of a ratchet de…
Quantum escape kinetics over a fluctuating barrier
Pulak Kumar Ghosh, Debashis Barik, Bidhan Chandra Bag +1
The escape rate of a particle over a fluctuating barrier in a double well potential exhibits resonance at an optimum value of correlation time of fluctuation. This has been shown t…