102 citations · 2k across the 57 of their papers we have counts for
57 papers
Scaling of Fock-space propagator and multifractality across the many-body localization transition
Jagannath Sutradhar, Soumi Ghosh, Sthitadhi Roy +3
We implement a recursive Green function method to extract the Fock space (FS) propagator and associated self-energy across the many-body localization (MBL) transition, for one-dime…
Anomalous multifractality in quantum chains with strongly correlated disorder
Alexander Duthie, Sthitadhi Roy, David E. Logan
We demonstrate numerically that a robust and unusual multifractal regime can emerge in a one-dimensional quantum chain with maximally correlated disorder, above a threshold disorde…
Fock-space anatomy of eigenstates across the many-body localisation transition
Sthitadhi Roy, David E. Logan
We explore the Fock-space structure of eigenstates across the many-body localisation (MBL) transition in a disordered, interacting quantum spin-1/2 chain. Eigenstate expectation va…
Localisation in quasiperiodic chains: a theory based on convergence of local propagators
Alexander Duthie, Sthitadhi Roy, David E. Logan
Quasiperiodic systems serve as fertile ground for studying localisation, due to their propensity already in one dimension to exhibit rich phase diagrams with mobility edges. The de…
Self-consistent theory of mobility edges in quasiperiodic chains
Alexander Duthie, Sthitadhi Roy, David E. Logan
We introduce a self-consistent theory of mobility edges in nearest-neighbour tight-binding chains with quasiperiodic potentials. Demarcating boundaries between localised and extend…
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…