68 citations · 496 across the 26 of their papers we have counts for
19 papers · 1 filter
Brownian particle in a Poisson-shot-noise active bath: exact statistics, effective temperature, and inference
Costantino Di Bello, Rita Majumdar, Rahul Marathe +2
We study the dynamics of an overdamped Brownian particle in a thermal bath that contains a dilute solution of active particles. The particle moves in a harmonic potential and exper…
Exploring outputs from concatenated stochastic heat engines
Aradhana Kumari, Rahul Marathe, Sourabh Lahiri
Recent works on the concatenation of two simple heat engines have shown that it may lead to non-monotonic variations in the efficiency and power with parameters like driving amplit…
Heat current magnification in Classical and Quantum spin networks
Vipul Upadhyay, Poshika Gandhi, Rohit Juneja +1
We investigate heat current magnification due to asymmetry in the number of spins in two-branched classical and quantum spin systems. We begin by studying the classical Ising like…
Exactly solvable model of a passive Brownian heat engine and its comparison with active engines
Rita Majumdar, Arnab Saha, Rahul Marathe
We perform an extensive analysis of passive as well as active micro-heat engines with different single-particle stochastic models. Using stochastic thermodynamics we calculate ther…
Stochastic thermodynamics of inertial-like Stuart-Landau dimer
Jung-Wan Ryu, Alexandre Lazarescu, Rahul Marathe +1
Stuart-Landau limit-cycle oscillators are a paradigm in the study of coherent and incoherent limit cycles. In this work, we generalize the standard Stuart-Landau dimer model to inc…
Heat rectification by two qubits coupled with Dzyaloshinskii-Moriya interaction
Vipul Upadhyay, M. Tahir Naseem, Rahul Marathe +1
We investigate heat rectification in a two-qubit system coupled via the Dzyaloshinskii-Moriya (DM) interaction. We derive analytical expressions for heat currents and thermal recti…
Underdamped Active Brownian Heat Engine
Viktor Holubec, Rahul Marathe
Active Brownian engines rectify energy from reservoirs composed of self-propelling non-equilibrium molecules into work. We consider a class of such engines based on an underdamped…
Convergence of thermodynamic quantities and work fluctuation theorems in presence of random protocols
Rahul Marathe, Sourabh Lahiri
Recently many results namely the Fluctuation theorems (FT), have been discovered for systems arbitrarily away from equilibrium. Many of these relations have been experimentally tes…
Stochastic Work Extraction in a colloidal heat engine in presence of colored noise
Arnab Saha, Rahul Marathe
From synthetic active devices such as self-propelling Janus colloids to micro-organisms like bacteria, micro-algae, living cells in tissues, active fluctuations are ubiquitous. The…
Simple analytical model of a thermal diode
Saurabh Kaushik, Sachin Kaushik, Rahul Marathe
Recently there is a lot of attention given to manipulation of heat by constructing thermal devices such as thermal diodes, transistors and logic gates. Many of the models proposed…
Stochastic Heat Engine Powered By Active Dissipation
Arnab Saha, Rahul Marathe, P. S. Pal +1
Thermodynamics of nanoscale devices is an active area of research. Despite their noisy surrounding they often produce mechanical work (e.g. micro-heat engines), display rectified B…
Extracting Work from a single heat bath using velocity dependent feedback
Arnab Saha, Rahul Marathe, A. M. Jayannavar
Thermodynamics of nanoscale devices is an active area of research. Despite their noisy surround- ing they often produce mechanical work (e.g. micro-heat engines) or display rectifi…
Two coupled, driven Ising spin systems working as an Engine
Debarshi Basu, Joydip Nandi, A. M. Jayannavar +1
Miniaturized heat engines constitutes a fascinating field of current research. They are being studied theoretically as well as experimentally, with experiments involving colloidal…
Energy current magnification in coupled oscillator loops
Rahul Marathe, Abhishek Dhar, Arun Jayannavar
Motivated by studies on current magnification in quantum mesoscopic systems we consider sound and heat transmission in classical models of oscillator chains. A loop of coupled osci…
Cooling classical particles with a microcanonical Szilard engine
Rahul Marathe, J. M. R. Parrondo
We discuss the possibility of extraction of energy from a single heat bath in a cyclic process, under some special initial conditions. We give an explicit example in which a system…
Particle current in symmetric exclusion process with time-dependent hopping rates
Rahul Marathe, Kavita Jain, Abhishek Dhar
In a recent study, (Jain et al 2007 Phys. Rev. Lett. 99 190601), a symmetric exclusion process with time-dependent hopping rates was introduced. Using simulations and a perturbatio…
Driving particle current through narrow channels using classical pump
Kavita Jain, Rahul Marathe, Abhishek Chaudhuri +1
We study a symmetric exclusion process in which the hopping rates at two chosen adjacent sites vary periodically in time and have a relative phase difference. This mimics a colloid…
Two simple models of classical heat pumps
Rahul Marathe, A. M. Jayannavar, Abhishek Dhar
Motivated by recent studies on models of particle and heat quantum pumps, we study similar simple classical models and examine the possibility of heat pumping. Unlike many of the u…
Work distribution functions for hysteresis loops in a single-spin system
Rahul Marathe, Abhishek Dhar
We compute the distribution of the work done in driving a single Ising spin with a time-dependent magnetic field. Using Glauber dynamics we perform Monte-Carlo simulations to find…