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- W4285483793 abstract "Quantum speed limits (QSLs) identify fundamental time scales of physical processes by providing lower bounds on the rate of change of a quantum state or the expectation value of an observable. We introduce a generalization of QSL for unitary operator flows, which are ubiquitous in physics and relevant for applications in both the quantum and classical domains. We derive two types of QSLs and assess the existence of a crossover between them, that we illustrate with a qubit and a random matrix Hamiltonian, as canonical examples. We further apply our results to the time evolution of autocorrelation functions, obtaining computable constraints on the linear dynamical response of quantum systems out of equilibrium and the quantum Fisher information governing the precision in quantum parameter estimation." @default.
- W4285483793 created "2022-07-15" @default.
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- W4285483793 date "2022-07-12" @default.
- W4285483793 modified "2023-10-16" @default.
- W4285483793 title "Quantum speed limits on operator flows and correlation functions" @default.
- W4285483793 doi "https://doi.org/10.48550/arxiv.2207.05769" @default.
- W4285483793 hasPublicationYear "2022" @default.
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