3 papers
cond-mat.stat-mech2026
Floquet scars and prethermal fragmentation in a driven spin-one chain
Krishanu Ghosh, Diptiman Sen, K. Sengupta
We study the periodic dynamics of a spin-one chain driven using a square-pulse protocol with amplitude and frequency . The Hamiltonian of the spin chain hosts a thermod…
quant-ph2025
Heating suppression via two-rate random and quasiperiodic drive protocols
Krishanu Ghosh, Sayan Choudhury, Diptiman Sen +1
We study a random and quasiperiodically driven one-dimensional non-integrable PXP spin chain in a magnetic field for two distinct drive protocols. Each of these protocols involves…
quant-ph2025
Quantum dynamics of a spin model with an extensive degeneracy
Krishanu Ghosh, Diptiman Sen, K. Sengupta
We study the role played by extensive degeneracy in shaping the nature of the quantum dynamics of a one-dimensional spin model for both ramp and periodic drive protocols. The model…