212 citations · 1.5k across the 55 of their papers we have counts for
5 papers · 1 filter
Strong ergodicity breaking due to local constraints in a quantum system
Sthitadhi Roy, Achilleas Lazarides
Quantum systems that violate the eigenstate thermalisation hypothesis thereby falling outside the paradigm of conventional statistical mechanics are of both intellectual and practi…
Measurement-induced steering of quantum systems
Sthitadhi Roy, J. T. Chalker, I. V. Gornyi +1
We set out a general protocol for steering the state of a quantum system from an arbitrary initial state towards a chosen target state by coupling it to auxiliary quantum degrees o…
Fock-space correlations and the origins of many-body localisation
Sthitadhi Roy, David E. Logan
We consider the problem of many-body localisation on Fock space, focussing on the essential features of the Hamiltonian which stabilise a localised phase. Any many-body Hamiltonian…
On time crystallinity in dissipative Floquet systems
Achilleas Lazarides, Sthitadhi Roy, Francesco Piazza +1
We investigate the conditions under which periodically driven quantum systems subject to dissipation exhibit a stable subharmonic response. Noting that coupling to a bath introduce…
Self-consistent theory of many-body localisation in a quantum spin chain with long-range interactions
Sthitadhi Roy, David E. Logan
Many-body localisation is studied in a disordered quantum spin-1/2 chain with long-ranged power-law interactions, and distinct power-law exponents for interactions between longitud…