37 citations · 59 across the 19 of their papers we have counts for
20 papers
Confined Riesz gas: From Newtonian Dynamics to Emergent Hydrodynamics
Indranil Mukherjee, Abhishek Dhar, Manas Kulkarni
We investigate the real-time dynamics of the Riesz gas (RG), a paradigmatic system of particles with power-law interactions that encapsulates several many-body interacting classica…
Entanglement Scaling and Full Counting Statistics in Excited States of Two-Dimensional Rotating Fermions
Priyangshu Goswami, Abhishek Dhar, Satya N. Majumdar +1
We investigate the entanglement entropy of a class of -particle excited state of fermions confined in a two-dimensional harmonic trap rotating at an angular frequency . The e…
Absence of hidden analytic conserved quantities in harmonically confined rods
Sahil Kumar Singh, Abhishek Dhar, Sanjay Moudgalya
Systems of hard rods of equal length in a one-dimensional harmonic trap have been observed to exhibit peculiar non-ergodic behavior that might suggest the existence of a novel hidd…
Slow heat-driven flow in a gas of hard disks
Amit Kumar, Abhishek Dhar, Baruch Meerson
We study a slow heat-driven flow in a gas of elastically colliding hard disks confined to a long channel. The initial state consists of two regions with large temperature and densi…
Hydrodynamics of the Fermi-Pasta-Ulam-Tsingou chain
Shubhadeep Chakraborty, Abhishek Dhar
We provide a pedagogical review of the hydrodynamics of the FPUT chain. There are three hydrodynamic fields corresponding to the conservation of mass, momentum and energy. We provi…
Quasiparticle Diffusion for the Toda Fluid in Equilibrium
Seema Chahal, Alberto Brollo, Indranil Mukherjee +3
Many-body integrable systems can be understood as a gas of quasiparticles. They propagate ballistically and drive large-scale transport. However, with the exception of the hard rod…
Quantized Transport in Floquet Topological Insulators
Rekha Kumari, Manas Kulkarni, Abhishek Dhar
We study quantum transport in a periodically driven (Floquet) topological system coupled to static fermionic reservoirs. Using the Floquet nonequilibrium Green's-function (NEGF) fo…
Stochastic dynamics of quasiparticles in the hard rod gas
Seema Chahal, Indranil Mukherjee, Abhishek Dhar +2
We consider a one-dimensional gas of hard rods, one of the simplest examples of an interacting integrable model. It is well known that the hydrodynamics of such integrable models c…
Extreme dynamics and relaxation of quantum gases: A hydrodynamic approach
Ritwik Mukherjee, Abhishek Dhar, Manas Kulkarni +1
The evolution of quantum gases, released from traps, are studied through hydrodynamics, both analytically and numerically, in one and two dimensions. In particular, we demonstrate…
Fixed Points and Universality Classes in Coupled Kardar-Parisi-Zhang Equations
Dipankar Roy, Abhishek Dhar, Manas Kulkarni +1
We study coupled KPZ equations with three control parameters . These equations are used in the context of stretched polymers in a random medium, for the spacetime spin-spin…
Page curve like dynamics in Interacting Quantum Systems
Tamoghna Ray, Abhishek Dhar, Manas Kulkarni
We study the dynamics of entanglement in a one-dimensional spin- chain, with and without integrability-breaking interactions, that is connected to a bath. We start from…
Spikes in Poissonian quantum trajectories
Alan Sherry, Cedric Bernardin, Abhishek Dhar +2
We consider the dynamics of a continuously monitored qubit in the limit of strong measurement rate where the quantum trajectory is described by a stochastic master equation with Po…
Hydrodynamics of a hard-core active lattice gas
Ritwik Mukherjee, Soumyabrata Saha, Tridib Sadhu +2
We present a fluctuating hydrodynamic description of an active lattice gas model with excluded volume interactions that exhibits motility-induced phase separation under appropriate…
Generalized hydrodynamics and approach to Generalized Gibbs equilibrium for a classical harmonic chain
Saurav Pandey, Abhishek Dhar, Anupam Kundu
We study the evolution of a classical harmonic chain with nearest-neighbor interactions starting from domain wall initial conditions. The initial state is taken to be either a prod…
Generalised Hydrodynamics description of the Page curve-like dynamics of a freely expanding fermionic gas
Madhumita Saha, Manas Kulkarni, Abhishek Dhar
We consider an analytically tractable model that exhibits the main features of the Page curve characterizing the evolution of entanglement entropy during evaporation of a black hol…
Dynamical crossovers and correlations in a harmonic chain of active particles
Subhajit Paul, Abhishek Dhar, Debasish Chaudhuri
We explore the dynamics of a tracer in an active particle harmonic chain, investigating the influence of interactions. Our analysis involves calculating mean-squared displacements…
Universality in coupled stochastic Burgers systems with degenerate flux Jacobian
Dipankar Roy, Abhishek Dhar, Konstantin Khanin +2
In our contribution we study stochastic models in one space dimension with two conservation laws. One model is the coupled continuum stochastic Burgers equation, for which each cur…
Thermalization and hydrodynamics in an interacting integrable system: the case of hard rods
Sahil Kumar Singh, Abhishek Dhar, Herbert Spohn +1
We consider the relaxation of an initial non-equilibrium state in a one-dimensional fluid of hard rods. Since it is an interacting integrable system, we expect it to reach the Gene…
Observation of multiple attractors and diffusive transport in a periodically driven Klein-Gordon chain
Umesh Kumar, Seemant Mishra, Anupam Kundu +1
We consider a Klein-Gordon chain that is periodically driven at one end and has dissipation at one or both boundaries. An interesting numerical observation in a recent study~[arXiv…
Harmonically confined particles with long-range repulsive interactions
Sanaa Agarwal, Abhishek Dhar, Manas Kulkarni +4
We study an interacting system of classical particles on a line at thermal equilibrium. The particles are confined by a harmonic trap and repelling each other via pairwise inte…