79 citations · 240 across the 15 of their papers we have counts for
15 papers
Precision and dissipation of a stochastic Turing pattern
Shubhashis Rana, Andre C Barato
Spontaneous pattern formation is a fundamental scientific problem that has received much attention since the seminal theoretical work of Turing on reaction-diffusion systems. In mo…
Tuning Self Organization Of Confined Active Particles By Steepness Of The Trap
Shubhashis Rana, Md. Samsuzzaman, Arnab Saha
We consider collective dynamics of self-propelling particles in two dimensions. They can align themselves according to the direction of propulsion of their neighbours, together wit…
Current reversal in interacting colloids under time-periodic drive
Shubhashis Rana, Sanchari Goswami, Sakuntala Chatterjee +1
Using molecular dynamics simulations, we study particle-transport in a system of interacting colloidal particles on a ring, where the system is driven by a time-dependent external…
Second law for an autonomous information machine connected with multiple baths
Shubhashis Rana
In an Information machine system's dynamics gets affected by the attached information reservoir. Second law of thermodynamics can be apparently violated for this case. In this arti…
Second law, Landauer's Principle and Autonomous information machine
Shubhashis Rana, A. M. Jayannavar
Second law of thermodynamics can be apparently violated for systems whose dynamics depends on acquired information by measurement. However, when one consider measurement and erasur…
A multipurpose information engine that can go beyond the Carnot limit
Shubhashis Rana, A. M. Jayannavar
Motivated by the recent work by Mandal and Jarzynski on autonomous Maxwell demon information engine, we have extended their model by introducing two different heat baths. The syste…
Anomalous Brownian Refrigerator
Shubhashis Rana, P. S. Pal, Arnab Saha +1
We present a detailed study of a Brownian particle driven by Carnot-type refrigerating protocol operating between two thermal baths. Both the underdamped as well as the overdamped…
Extracting work from a single heat bath - A case study on Brownian particle under external magnetic field in presence of information
P. S. Pal, Shubhashis Rana, Arnab Saha +1
Work can be extracted from a single bath beyond the limit set by the second law by performing measurement on the system and utilising the acquired information. As an example we stu…
Single Particle Stochastic Heat Engine
Shubhashis Rana, P. S. Pal, Arnab Saha +1
We have performed an extensive analysis of a single particle stochastic heat engine constructed by manipulating a Brownian particle in a time dependent harmonic potential. The cycl…
Fluctuation theorems in inhomogenious media under coarse graining
Sourabh Lahiri, Shubhashis Rana, A. M. Jayannavar
We compare the fluctuation relations for work and entropy in underdamped and overdamped systems, when the friction coefficient of the medium is space-dependent. We find that these…
Fluctuation relations for heat engines in time-periodic steady states
Sourabh Lahiri, Shubhashis Rana, A. M. Jayannavar
A fluctuation relation for heat engines (FRHE) has been derived recently. In the beginning, the system is in contact with the cooler bath. The system is then coupled to the hotter…
Generalized entropy production fluctuation theorems for quantum systems
Shubhashis Rana, Sourabh Lahiri, A. M. Jayannavar
Based on trajectory dependent path probability formalism in state space, we derive generalized entropy production fluctuation relations for a quantum system in the presence of meas…
Quantum Jarzynski Equality with multiple measurement and feedback for isolated system
Shubhashis Rana, Sourabh Lahiri, A. M. Jayannavar
In this paper, we derive the Jarzynski equality (JE) for an isolated quantum system in three different cases: (i) the full evolution is unitary with no intermediate measurements, (…
The effect of confinement on stochastic resonance in continuous bistable systems
Shubhashis Rana, Sourabh Lahiri, A. M. Jayannavar
Using the input energy per cycle as a quantifier of stochastic resonance (SR), we show that SR is observed in superharmonic (hard) potentials. However, it is not observed in subhar…
Fluctuation theorems in presence of information gain and feedback
Sourabh Lahiri, Shubhashis Rana, A. M. Jayannavar
In this study, we rederive the fluctuation theorems in presence of feedback, by assuming the known Jarzynski equality and detailed fluctuation theorems. We first reproduce the alre…