290 citations · 1.5k across the 43 of their papers we have counts for
8 papers · 2 filters
Brownian transport in corrugated channels with inertia
P. K. Ghosh, P. Hanggi, F. Marchesoni +2
The transport of suspended Brownian particles dc-driven along corrugated narrow channels is numerically investigated in the regime of finite damping. We show that inertial correcti…
Geometric Stochastic Resonance
Pulak Kumar Ghosh, Fabio Marchesoni, Sergey E. Savel'ev +1
A Brownian particle moving across a porous membrane subject to an oscillating force exhibits stochastic resonance with properties which strongly depend on the geometry of the confi…
Interference of stochastic resonances: Splitting of Kramers' rate
Pulak Kumar Ghosh, Bidhan Chandra Bag, Deb Shankar Ray
We consider the escape of particles located in the middle well of a symmetric triple well potential driven sinusoidally by two forces such that the potential wells roll as in stoch…
Noise correlation-induced splitting of Kramers' escape rate from a metastable state
Pulak Kumar Ghosh, Bidhan Chandra Bag, Deb Shankar Ray
A correlation between two noise processes driving the thermally activated particles in a symmetric triple well potential, may cause a symmetry breaking and a difference in relative…
Characterizing dynamical transitions in bistable system using non-equilibrium measurement of work
Pulak Kumar Ghosh, Deb Shankar Ray
We show how Jarzynski relation can be exploited to analyze the nature of order-disorder and a bifurcation type dynamical transition in terms of a response function derived on the b…
Kinetics of self-induced aggregation of Brownian particles: non-Markovian and non-Gaussian features
Pulak Kumar Ghosh, Monoj Kumar Sen, Bidhan Chandra Bag
In this paper we have studied a model for self-induced aggregation in Brownian particle incorporating the non-Markovian and non-Gaussian character of the associated random noise pr…
Periodic force induced stabilization or destabilization of the denatured state of a protein
Pulak Kumar Ghosh, Mai Suan Li, Bidhan Chandra Bag
We have studied the effects of an external sinusoidal force in protein folding kinetics. The externally applied force field acts on the each amino acid residues of polypeptide chai…
Geometric stochastic resonance in a double cavity
Pulak K. Ghosh, Russell Glavey, Fabio Marchesoni +2
Geometric stochastic resonance of particles diffusing across a porous membrane subject to oscillating forces is characterized as a synchronization process. Noninteracting particle…