974 citations · 2.6k across the 15 of their papers we have counts for
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Quantum freeze of fidelity decay for a class of integrable dynamics
Tomaz Prosen, Marko Znidaric
We discuss quantum fidelity decay of classically regular dynamics, in particular for an important special case of a vanishing time averaged perturbation operator, i.e. vanishing ex…
Theory of quantum Loschmidt echoes
Tomaz Prosen, Thomas H. Seligman, Marko Znidaric
In this paper we review our recent work on the theoretical approach to quantum Loschmidt echoes, i.e. various properties of the so called echo dynamics -- the composition of forwar…
Estimating purity in terms of correlation functions
Tomaz Prosen, Thomas H. Seligman, Marko Znidaric
We prove a rigorous inequality estimating the purity of a reduced density matrix of a composite quantum system in terms of cross-correlation of the same state and an arbitrary prod…