58 citations · 113 across the 7 of their papers we have counts for
5 papers · 1 filter
Determining the Number of Symmetry Sectors in Composite Quantum Spectra
Nisarg Vyas, S. Harshini Tekur, M. S. Santhanam
The spectral fluctuations in complex quantum systems are modeled in terms of spectra from random matrices. Quantitative agreement with random matrices holds only when the quantum s…
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…
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…
Higher order spacing ratios in random matrix theory and complex quantum systems
S. Harshini Tekur, Udaysinh T. Bhosale, M. S. Santhanam
The distribution of the ratios of nearest neighbor level spacings has become a popular indicator of spectral fluctuations in complex quantum systems like interacting many-body loca…
Exact distribution of spacing ratios for random and localized states in quantum chaotic systems
S. Harshini Tekur, Santosh Kumar, M. S. Santhanam
Typical eigenstates of quantum systems, whose classical limit is chaotic, are well approximated as random states. Corresponding eigenvalue spectra is modeled through appropriate en…