6 papers
Localization with Hopping Disorder in Quasi-periodic Synthetic Momentum Lattice
Joel M. Sunil, J. Bharathi Kannan, Monu Bhartiya +5
Lattice quasi-periodicity is easily realized with ultracold atoms in optical lattices and has been used to study delocalization-localization transition at low dimensions. Models wi…
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…
Extreme Events of Quantum Walks on Graphs
Nisarg Vyas, M. S. Santhanam
Due to the unitary evolution, quantum walks display different dynamical features from that of classical random walks. In contrast to this expectation, in this work, we show that ex…
Higher-order gap ratios of singular values in open quantum systems
S. Harshini Tekur, M. S. Santhanam, Bijay Kumar Agarwalla +1
Understanding open quantum systems using information encoded in its complex eigenvalues has been a subject of growing interest. In this paper, we study higher-order gap ratios of t…
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…