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Bidhan Chandra Bag
Researcher at Visva-Bharati University
Publications - 100
Citations - 1449
Bidhan Chandra Bag is an academic researcher from Visva-Bharati University. The author has contributed to research in topics: Noise (electronics) & Brownian motion. The author has an hindex of 23, co-authored 98 publications receiving 1376 citations. Previous affiliations of Bidhan Chandra Bag include Indian Institute of Technology Kharagpur & Academia Sinica.
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Colored non-gaussian noise driven open systems: generalization of Kramers' theory with a unified approach.
TL;DR: The calculated escape rate from a meta stable state in the presence of both colored internal thermal and external nonthermal noises is valid for low noise strength of non-gaussian noise such that an effective gaussian approximation ofnon-GAussian noise wherein the higher order even cumulants of order "4" and higher are neglected.
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Generalized quantum Fokker-Planck, diffusion, and Smoluchowski equations with true probability distribution functions
TL;DR: A simple approach to non-Markovian theory of quantum Brownian motion using true probability distribution functions is presented, derived from an initial coherent state representation of the bath oscillators and an equilibrium canonical distribution of the quantum mechanical mean values of their coordinates and momenta.
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Upper bound for the time derivative of entropy for nonequilibrium stochastic processes.
TL;DR: The interplay of dissipation and the properties of noise processes driving the dynamical systems in presence and absence of external forces, reveals some interesting extremal nature of the upper bound.
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Escape through an unstable limit cycle: Resonant activation
Bidhan Chandra Bag,Chin-Kun Hu +1 more
TL;DR: The mean first passage time (MFPT) for the particle to escape from an unstable limit cycle is numerically calculated and finds resonant activation, i.e., the MFPT first decreases, followed by a rise after passing through a minimum with increasing noise correlation time tau for a fixed noise variance.
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Quantum escape kinetics over a fluctuating barrier
TL;DR: In this article, the authors extend the analysis of resonant activation to quantum domain to show how quantization significantly enhances resonance activation at low temperature due to tunneling, which has been shown to be important in several variants of kinetic model of chemical reactions.