Showing papers by "Bidhan Chandra Bag published in 2018"
TL;DR: The simple nature of the mechanism numerically investigated here suggests a number of interesting applications for instance in the context of energy harvesting from random ambient vibrations, activated barrier crossing through a saddle point, or an unstable limit cycle.
Abstract: A one-dimensional linear autonomous system coupled to a generic stationary nonequilibrium fluctuating bath can exhibit resonant response when its damped oscillation period matches some characteristic bath's relaxation time. This condition justifies invoking the stochastic resonance paradigm, even if it can be achieved more easily by tuning the system to the bath and not vice versa, as is usually the case. The simple nature of the mechanism numerically investigated here suggests a number of interesting applications for instance in the context of (1) energy harvesting from random ambient vibrations, (2) activated barrier crossing through a saddle point, or (3) an unstable limit cycle.
7 citations
TL;DR: In this paper, the dynamics of a Brownian particle coupled to a thermal bath in the presence of a fluctuating magnetic field (FMF) were presented. But the authors did not consider the effect of the FMF on the temperature of the thermal bath.
Abstract: In this paper we have presented the dynamics of a Brownian particle which is coupled to a thermal bath in the presence of a fluctuating magnetic field (FMF). By virtue of the FMF the Brownian particle experiences a time dependent damping strength for the x − direction motion even in the presence of a stationary Markovian thermal bath. There is a transition state along this direction. The time dependent damping strength leads to appear a bi-turnover phenomenon in the variation of the barrier crossing rate as a function of the thermal bath induced damping strength. It is a generic signature of the fluctuating magnetic field.
4 citations