52 citations · 550 across the 30 of their papers we have counts for
11 papers · 1 filter
On the emergence of quantum many-body chaos for tunably-broken integrability
Sounak Biswas, Sthitadhi Roy, Roderich Moessner
We develop a quantitative theory for the emergence of quantum many-body chaos as integrability is broken via a tunable parameter. In a circuit model of free fermions, 'doped' with…
How many-body chaos emerges in the presence of quasiparticles
Sibaram Ruidas, Sthitadhi Roy, Subhro Bhattacharjee +1
Many-body chaos is a default property of many-body systems; at the same time, near-integrable behaviour due to weakly interacting quasiparticles is ubiquitous throughout condensed…
Projected ensemble in a system with conserved charges with local support
Sandipan Manna, Sthitadhi Roy, G. J. Sreejith
The investigation of ergodicity or lack thereof in isolated quantum many-body systems has conventionally focused on the description of the reduced density matrices of local subsyst…
Constrained Dynamics and Directed Percolation
Aydin Deger, Achilleas Lazarides, Sthitadhi Roy
In a recent work [A. Deger et al., Phys. Rev. Lett. 129, 160601 (2022)] we have shown that kinetic constraints can completely arrest many-body chaos in the dynamics of a classical,…
Real-time correlators in chaotic quantum many-body systems
Adam Nahum, Sthitadhi Roy, Sagar Vijay +1
We study real-time local correlators in chaotic quantum many-body systems. These correlators show universal structure at l…
Arresting classical many-body chaos by kinetic constraints
Aydin Deger, Sthitadhi Roy, Achilleas Lazarides
We investigate the effect of kinetic constraints on classical many-body chaos in a translationally-invariant Heisenberg spin chain using a classical counterpart of the out-of-time-…