937 citations · 6.5k across the 136 of their papers we have counts for
137 papers
Quantum Chaos and Diffusive Transport from Geometric Randomness
Bibek Saha, Abhishek Dhar, Sthitadhi Roy
The physics of quantum chaos and diffusive transport is typically studied in settings with microscopic disorder or many-body interactions. In this Letter, we demonstrate that these…
Unusual ergodic and chaotic properties of trapped hard rods
Debarshee Bagchi, Jitendra Kethepalli, Vir B. Bulchandani +4
We investigate ergodicity, chaos and thermalization for a one-dimensional classical gas of hard rods confined to an external quadratic or quartic trap, which breaks microscopic int…
Nonequilibrium spin transport in integrable and non-integrable classical spin chains
Dipankar Roy, Abhishek Dhar, Herbert Spohn +1
Anomalous transport in low dimensional spin chains is an intriguing topic that can offer key insights into the interplay of integrability and symmetry in many-body dynamics. Recent…
Quantized two terminal conductance, edge states and current patterns in an open geometry 2-dimensional Chern insulator
Junaid Majeed Bhat, R. Shankar, Abhishek Dhar
The quantization of the two terminal conductance in 2D topological systems is justified by the Landauer-Buttiker (LB) theory that assumes perfect point contacts between single chan…
Boltzmann entropy of a freely expanding quantum ideal gas
Saurav Pandey, Junaid Majeed Bhat, Abhishek Dhar +5
We study the time evolution of the Boltzmann entropy of a microstate during the non-equilibrium free expansion of a one-dimensional quantum ideal gas. This quantum Boltzmann entrop…
Searching for Lindbladians obeying local conservation laws and showing thermalization
Devashish Tupkary, Abhishek Dhar, Manas Kulkarni +1
We investigate the possibility of a Markovian quantum master equation (QME) that consistently describes a finite-dimensional system, a part of which is weakly coupled to a thermal…