312 citations · 5.8k across the 176 of their papers we have counts for
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The semiclassical continuity equation for open chaotic systems
Jack Kuipers, Daniel Waltner, Martha Gutierrez +1
We consider the continuity equation for open chaotic quantum systems in the semiclassical limit. First we explicitly calculate a semiclassical expansion for the probability current…
Loschmidt echo for local perturbations: non-monotonous cross-over from the Fermi-golden-rule to the escape-rate regime
Arseni Goussev, Daniel Waltner, Klaus Richter +1
We address the sensitivity of quantum mechanical time evolution by considering the time decay of the Loschmidt echo (LE) (or fidelity) for local perturbations of the Hamiltonian. W…
Random Wave Functions with boundary and normalization constraints: Quantum statistical physics meets quantum chaos
Juan Diego Urbina, Klaus Richter
We present an improved version of Berry's ansatz able to incorporate exactly the existence of boundaries and the correct normalization of the eigenfunction into an ensemble of rand…