35 citations · 82 across the 9 of their papers we have counts for
9 papers
Probing the localization effects in Krylov basis
J. Bharathi Kannan, Sreeram PG, Sanku Paul +2
Krylov complexity (K-complexity) is a measure of quantum state complexity that minimizes wavefunction spreading across all the possible bases. It serves as a key indicator of opera…
Faster entanglement driven by quantum resonance in many-body kicked rotors
Sanku Paul, J. Bharathi Kannan, M. S. Santhanam
Quantum resonance in the paradigmatic kicked rotor system is a purely quantum effect that ignores the state of underlying classical chaos. In this work, it is shown that quantum re…
Interaction-induced directed transport in quantum chaotic systems
Sanku Paul, J. Bharathi Kannan, M. S. Santhanam
Quantum directed transport can be realized in non-interacting, deterministic, chaotic systems by appropriately breaking the spatio-temporal symmetries in the potential. In this wor…
Hidden Quantum Criticality and Entanglement in Quench Dynamics
Sanku Paul, Paraj Titum, Mohammad F. Maghrebi
Entanglement exhibits universal behavior near the ground-state critical point where correlations are long-ranged and the thermodynamic entropy is vanishing. On the other hand, a qu…
Linear and logarithmic entanglement production in an interacting chaotic system
Sanku Paul, Arnd Bäcker
We investigate entanglement growth for a pair of coupled kicked rotors. For weak coupling, the growth of the entanglement entropy is found to be initially linear followed by a loga…
Non-monotonic diffusion rates in atom-optics Lévy kicked rotor
Sanku Paul, Sumit Sarkar, Chetan Vishwakarma +3
The dynamics of chaotic Hamiltonian systems such as the kicked rotor continues to guide our understanding of transport and localization processes. The localized states of the quant…
Floquet states of kicked particle in a singular potential: Exponential and power-law profiles
Sanku Paul, M. S. Santhanam
It is well known that, in the chaotic regime, all the Floquet states of kicked rotor system display an exponential profile resulting from dynamical localization. If the kicked roto…
Non-exponential decoherence and subdiffusion in atom-optics kicked rotor
Sumit Sarkar, Sanku Paul, Chetan Vishwakarma +5
Quantum systems lose coherence upon interaction with the environment and tend towards classical states. Quantum coherence is known to exponentially decay in time so that macroscopi…
Barrier induced chaos in kicked rotor : classical sub-diffusion and quantum localization
Sanku Paul, Harinder Pal, M. S. Santhanam
The relation between classically chaotic dynamics and quantum localization is studied in a system that violates the assumptions of Kolmogorov-Arnold-Moser (KAM) theorem, namely, ki…