5 papers
Topological signatures in the quench dynamics of periodically driven quantum systems
Ashutosh Dubey, Hironmoy Pratihar, Diptiman Sen +1
We study the quench dynamics of graphene, without and with a staggered mass, following the sudden switch-on of circularly polarized light where coupling to a fermionic bath is also…
Mixed Floquet Lattice model for gapless topology
Goutham Vinjamuri, Ashutosh Dubey, Ankur Das
We investigate the realization of a time-reversal-broken Weyl semimetal in Floquet synthetic dimensions generated by two incommensurate drives, in the spirit of topological frequen…
Emergent Carroll symmetry at phase separation in one-dimensional lattice systems
Sourav Biswas, Ashutosh Dubey, Saikat Mondal +3
Asymptotic behavior of generic Tomonaga-Luttinger liquid in the vicinity of phase-separated regions is known to produce an instability where well-known relativistic Conformal Field…
Drift-diffusive resetting search process with stochastic returns: speed-up beyond optimal instantaneous return
Arup Biswas, Ashutosh Dubey, Anupam Kundu +1
Stochastic resetting has emerged as a useful strategy to reduce the completion time for a broad class of first passage processes. In the canonical setup, one intermittently resets…
Time-resolved ARPES and optical transport properties of irradiated twisted bilayer graphene in steady-state
Ashutosh Dubey, Ritajit Kundu, Arijit Kundu
We theoretically investigate the trARPES spectrum and optical Hall conductivity in periodically driven twisted bilayer graphene, considering both steady-state and "projected" occup…