From the 2 of 11 linked papers with an AI index.
11 papers
Quantum Chaos and Diffusive Transport from Geometric Randomness
Bibek Saha, Abhishek Dhar, Sthitadhi Roy
The paper shows that quantum chaos and diffusive transport can emerge solely from geometric randomness in non‑interacting particles on random tree‑like layered graphs, with the gra…
Locality of deep thermalisation through the lens of entanglement teleportation
Saptarshi Mandal, Alan Sherry, Sthitadhi Roy
The paper investigates how deep thermalisation—universal quantum state ensembles emerging from measurements—occurs locally or non‑locally in a system split into two causally discon…
Krylov-space anatomy and spread complexity of a disordered quantum spin chain
Bikram Pain, David E. Logan, Sthitadhi Roy
We investigate the anatomy and complexity of quantum states in Krylov space, in the ergodic and many-body localised (MBL) phases of a disordered, interacting spin chain. The Krylov…
Anderson localisation in spatially structured random graphs
Bibek Saha, Sthitadhi Roy
We study Anderson localisation on high-dimensional graphs with spatial structure induced by long-ranged but distance-dependent hopping. To this end, we introduce a class of models…
Information phases of partial projected ensembles generated from random quantum states and scrambling dynamics
Alan Sherry, Saptarshi Mandal, Sthitadhi Roy
The projected ensemble -- an ensemble of pure states on a subsystem conditioned on projective measurement outcomes on its complement -- provides a finer probe of ergodicity and inf…
Robust Correlation-Induced Localization Under Time-Reversal Symmetry Breaking
Bikram Pain, Sthitadhi Roy, Jens H. Bardarson +1
We study Anderson localization in a one-dimensional disordered system with long-range correlated hopping decaying as with complex hopping amplitudes that break time-rever…