49 citations · 140 across the 13 of their papers we have counts for
20 papers
Temperature and integrability-breaking correspondence via adiabatic transformations
Hyeongjin Kim, Souvik Bandyopadhyay, Anatoli Polkovnikov
We reveal a correspondence between temperature and integrability-breaking in classical and quantum many-body systems through the lens of geometry and adiabatic transformations. Dec…
Probing quantum many-body dynamics using subsystem Loschmidt echos
Simon Karch, Souvik Bandyopadhyay, Zheng-Hang Sun +9
The Loschmidt echo - the probability of a quantum many-body system to return to its initial state following a dynamical evolution - generally contains key information about a quant…
Slow relaxation of quasi-periodically driven integrable quantum many-body systems
Souradeep Ghosh, Sourav Bhattacharjee, Souvik Bandyopadhyay
We study the emergence and stability of a prethermal phase in an integrable many-body system subjected to a Fibonacci drive. Despite not being periodic, Fibonacci drives have been…
Sharp detection of the onset of Floquet heating using eigenstate sensitivity
Sourav Bhattacharjee, Souvik Bandyopadhyay, Anatoli Polkovnikov
Chaotic Floquet systems at sufficiently low driving frequencies are known to heat up to an infinite temperature ensemble in the thermodynamic limit. However at high driving frequen…
Signatures of quantum phases in a dissipative system
Rohan Joshi, Saikat Mondal, Souvik Bandyopadhyay +2
Lindbladian formalism, as tuned to dissipative and open systems, has been all-pervasive to interpret non-equilibrium steady states of quantum many-body systems. We study the fate o…
Late-time critical behavior of local string-like observables under quantum quenches
Souvik Bandyopadhyay, Anatoli Polkovnikov, Amit Dutta
In recent times it has been observed that signatures of equilibrium quantum criticality surprisingly show up in many-body systems which are manifestly far from equilibrium. We expl…