16 citations · 16 across the 1 of their papers we have counts for
5 papers
Entanglement entropy and out-of-time-order correlator in the long-range Aubry-André-Harper model
Nilanjan Roy, Auditya Sharma
We investigate the nonequilbrium dynamics of entanglement entropy and out-of-time-order correlator (OTOC) of noninteracting fermions at half-filling starting from a product state t…
Fraction of delocalized eigenstates in the long-range Aubry-André-Harper model
Nilanjan Roy, Auditya Sharma
We uncover a systematic structure in the single particle phase-diagram of the quasiperiodic Aubry-André-Harper(AAH) model with power-law hoppings () when the qu…
Interplay of disorder and interactions in a flat-band supporting diamond chain
Nilanjan Roy, Ajith Ramachandran, Auditya Sharma
We systematically study the effect of disorder and interactions on a quasi-one dimensional diamond chain possessing flat bands. Disorder localizes all the single particle eigenstat…
Study of counterintuitive transport properties in the Aubry-André-Harper model via entanglement entropy and persistent current
Nilanjan Roy, Auditya Sharma
The single particle eigenstates of the Aubry-André-Harper model are known to show a delocalization-localization transition at a finite strength of the quasi-periodic disorder. In t…
Quantum simulation of long range quantum spin glass with strong area-law violation using trapped ions
Nilanjan Roy, Auditya Sharma, Rick Mukherjee
Ground states of local Hamiltonians are known to obey the entanglement entropy area law. While area law violation of a mild kind (logarithmic) is commonly encountered, strong area-…