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quant-ph2024
Quantum complexity and localization in random and time-periodic unitary circuits
Himanshu Sahu, Aranya Bhattacharya, Pingal Pratyush Nath
We study the growth and saturation of complexity in Krylov basis in random quantum circuits. In Haar-random unitary evolution, we show that, for large system sizes, this notion of…
quant-ph2024
Speed limits to the growth of Krylov complexity in open quantum systems
Aranya Bhattacharya, Pingal Pratyush Nath, Himanshu Sahu
Recently, the propagation of information through quantum many-body systems, developed to study quantum chaos, have found many application from black holes to disordered spin system…