2 papers
quant-ph2025
Estimating time in quantum chaotic systems and black holes
Haifeng Tang, Shreya Vardhan, Jinzhao Wang
We characterize new universal features of the dynamics of chaotic quantum many-body systems, by considering a hypothetical task of "time estimation." Most macroscopic observables i…
quant-ph2025
Free mutual information and higher-point OTOCs
Shreya Vardhan, Jinzhao Wang
We introduce a quantity called the free mutual information (FMI), adapted from concepts in free probability theory, as a new physical measure of quantum chaos. This quantity captur…