159 citations · 2k across the 161 of their papers we have counts for
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Enhanced thermodynamic efficiency in time asymmetric ratchets
Raishma Krishnan, Soumen Roy, A. M. Jayannavar
The energetic efficiency of an overdamped Brownian particle in a saw tooth potential in the presence of time asymmetric forcing is studied in the adiabatic limit. An error made in…
Phase delay time and superluminal propagation in barrier tunneling
Swarnali Bandopadhyay, A. M. Jayannavar
In this work we study the behaviour of Wigner phase delay time for tunneling in the reflection mode. Our system consists of a circular loop connected to a single wire of semi-infin…
Hartman effect and non-locality in quantum networks
Swarnali Bandopadhyay, A. M. Jayannavar
We study the phase time for various quantum mechanical networks having potential barriers in its arms to find the generic presence of Hartman effect. In such systems it is possible…
Diffusion accompanying noise induced transport in frictional ratchets
Raishma Krishnan, Debasis Dan, A. M. Jayannavar
We study the noise induced transport of an overdamped Brownian particle in frictional ratchet systems in the presence of external Gaussian white noise fluctuations. The analytical…
Engines at molecular scales
Raishma Krishnan, A. M. Jayannavar
In recent literature there has been a lot of interest in the phenomena of noise induced transport in the absence of an average bias occurring in spatially periodic systems far from…
Brownian rectifiers in the presence of temporally asymmetric unbiased forces
Raishma Krishnan, Mangal C. Mahato, A. M. Jayannavar
The efficiency of energy transduction in a temporally asymmetric rocked ratchet is studied. Time asymmetry favours current in one direction and suppresses it in the opposite direct…