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quant-ph2023
Multifractal dimensions for orthogonal-to-unitary crossover ensemble
Ayana Sarkar, Ashutosh Dheer, Santosh Kumar
Multifractal analysis is a powerful approach for characterizing ergodic or localized nature of eigenstates in complex quantum systems. In this context, the eigenvectors of random m…
quant-ph2023
Spectral crossover in non-hermitian spin chains: comparison with random matrix theory
Ayana Sarkar, Sunidhi Sen, Santosh Kumar
We systematically study the short range spectral fluctuation properties of three non-hermitian spin chain hamiltonians using complex spacing ratios. In particular we focus on the n…