80 citations · 205 across the 5 of their papers we have counts for
4 papers · 1 filter
Quantum Brownian Motion: Drude and Ohmic Baths as Continuum Limits of the Rubin Model
Avijit Das, Abhishek Dhar, Ion Santra +2
The motion of a free quantum particle in a thermal environment is usually described by the quantum Langevin equation, where the effect of the bath is encoded through a dissipative…
Kardar-Parisi-Zhang Scaling for an Integrable Lattice Landau-Lifshitz Spin Chain
Avijit Das, Manas Kulkarni, Herbert Spohn +1
Recent studies report on anomalous spin transport for the integrable Heisenberg spin chain at its isotropic point. Anomalous scaling is also observed in the time-evolution of non-e…
Nonlinear Fluctuating Hydrodynamics for the Classical XXZ Spin Chain
Avijit Das, Kedar Damle, Abhishek Dhar +4
Using the framework of nonlinear fluctuating hydrodynamics (NFH), we examine equilibrium spatio-temporal correlations in classical ferromagnetic spin chains with nearest neighbor i…
Light-cone spreading of perturbations and the butterfly effect in a classical spin chain
Avijit Das, Saurish Chakrabarty, Abhishek Dhar +5
We find that localised perturbations in a chaotic classical many-body system-- the classical Heisenberg We find that the effects of a localised perturbation in a chaotic classical…