5 citations · 21 across the 10 of their papers we have counts for
9 papers · 1 filter
Upper bounds on charging power and tangible advantage in quantum batteries
Sreeram PG, J. Bharathi Kannan, M. S. Santhanam
Quantum battery is expected to outperform its classical counterpart due to quantum effects. Usually, in a quantum battery made of cells, quantum advantage is demonstrated throu…
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…
Dependence of Krylov complexity on the initial operator and state
Sreeram PG, J. Bharathi Kannan, Ranjan Modak +1
Krylov complexity, a quantum complexity measure which uniquely characterizes the spread of a quantum state or an operator, has recently been studied in the context of quantum chaos…
Dichotomy in the effect of chaos on ergotropy
Sreeram PG, J. Bharathi Kannan, S. Harshini Tekur +1
The maximum unitarily extractable work from a quantum system -- ergotropy -- is the basic principle behind quantum batteries, a rapidly emerging field. This work studies ergotropy…
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…
Asymmetric dynamical localization and precision measurement of BEC micromotion
S. Sagar Maurya, J. Bharathi Kannan, Kushal Patel +4
We employ a Bose Einstein Condensate (BEC) based atom-optic kicked rotor to generate an asymmetrically localized momentum distribution that depends upon initial velocity of the BEC…
Chaos and localized phases in a two-body linear kicked rotor system
Anjali Nambudiripad, J. Bharathi Kannan, M. S. Santhanam
Despite the periodic kicks, a linear kicked rotor (LKR) is an integrable and exactly solvable model in which the kinetic energy term is linear in momentum. It was recently shown th…
Tuning for Quantum Speedup in Directed Lackadaisical Quantum Walks
Pranay Naredi, J. Bharathi Kannan, M. S. Santhanam
Quantum walks constitute an important tool for designing quantum algorithms and information processing tasks. In a lackadaisical walk, in addition to the possibility of moving out…
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…