159 citations · 2k across the 161 of their papers we have counts for
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Quantum current magnification in a multi-channel mesoscopic ring
Swarnali Bandopadhyay, P. Singha Deo, A. M. Jayannavar
We have studied the current magnification effect in a multi-channel open mesoscopic ring. We show that the current magnification effect is robust even in the presence of several pr…
Hartman effect in presence of Aharanov Bohm flux
Swarnali Bandopadhyay, Raishma Krishnan, A. M. Jayannavar
The Hartman effect for the tunneling particle implies the independence of group delay time on the opaque barrier width, with superluminal velocities as a consequence. This effect i…
Entropy production, energy loss and currents in adiabatically rocked thermal ratchets
Raishma Krishnan, A. M. Jayannavar
We study the nature of currents, input energy and entropy production in different types of adiabatically rocked ratchets using the method of stochastic energetics. The currents exh…
Equilibrium currents in quantum double ring system: A non-trivial role of system-reservoir coupling
Colin Benjamin, A. M. Jayannavar
Amperes law states that the magnetic moment of a ring is given by current times the area enclosed. Also from equilibrium statistical mechanics it is known that magnetic moment is t…
Transport Coherence in Frictional Ratchets
Raishma Krishnan, Debasis Dan, A. M. Jayannavar
We study the phenomena of noise induced transport in frictional ratchet systems. For this we consider a Brownian particle moving in a space dependent frictional medium in the prese…
Bona fide Stochastic Resonance: A view point from stochastic energetics
Debasis Dan, A. M. Jayannavar
We investigate the resonance type behaviour of an overdamped Brownian particle in a bistable potential driven by external periodic signal. It has been shown previously that the inp…