7 citations · 7 across the 9 of their papers we have counts for
7 papers · 1 filter
Dissipation stabilizes Dicke Time Quasicrystals
Sk Anisur, Shuva Mondal, Tanaya Ray +1
Quasi-periodic driving protocols provide a powerful route to realize novel non-equilibrium phases of matter beyond the Floquet paradigm. However, these protocols inevitably lead to…
Tunably realizing flat-bands and exceptional points in kinetically frustrated systems: An example on the non-Hermitian Creutz ladder
Debashish Dutta, Sayan Choudhury
We study a non-Hermitian extension of the Creutz ladder with generic non-reciprocal hopping. By mapping the ladder onto two decoupled non-Hermitian Su--Schrieffer--Heeger (SSH) cha…
Coexistence of inequivalent time-crystalline orders in a Floquet collective spin system
Shashank Mishra, Sayan Choudhury
We investigate the dynamical phases that emerge in collective spin models subjected to a spatially non-uniform periodic drive. Taking the paradigmatic Lipkin-Meshkov-Glick (LMG) mo…
Directional quantum walks of two bosons on the Hatano-Nelson lattice
Sk Anisur, Kartik Singh, Sayan Choudhury
We theoretically investigate the interplay of interactions and non-Hermiticity in the dynamics of two bosons on the one-dimensional Hatano-Nelson lattice with non-reciprocal tunnel…
Discrete Time Crystals in the spin-s Central Spin Model
Hillol Biswas, Sayan Choudhury
We propose periodic driving protocols to realize discrete time crystals (DTCs) in a spin-s central spin model. Interestingly, we identify parameter regimes, where eternal period-do…
The Floquet central spin model: A platform to realize eternal time crystals, entanglement steering, and multiparameter metrology
Hillol Biswas, Sayan Choudhury
We propose and characterize protocols to engineer exact quantum revivals, discrete time crystals (DTCs), and entanglement oscillations in the periodically driven central spin model…