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Exponential sensitivity to dephasing of electrical conduction through a quantum dot
J. Tworzydlo, A. Tajic, H. Schomerus +2
According to random-matrix theory, interference effects in the conductance of a ballistic chaotic quantum dot should vanish when the dephasing time b…
Coherent backscattering from a quantum dot is insensitive to the Ehrenfest time
A. Tajic, J. Tworzydlo, C. W. J. Beenakker
This paper was withdrawn by the authors. The purpose of this paper was to provide conclusive evidence for the Ehrenfest-time-independence of weak localization, by means of a comput…
Quantum-to-classical crossover of quasi-bound states in open quantum systems
Henning Schomerus, Jakub Tworzydlo
In the semiclassical limit of open ballistic quantum systems, we demonstrate the emergence of instantaneous decay modes guided by classical escape faster than the Ehrenfest time. T…
Weak localization of the open kicked rotator
J. Tworzydlo, A. Tajic, C. W. J. Beenakker
We present a numerical calculation of the weak localization peak in the magnetoconductance for a stroboscopic model of a chaotic quantum dot. The magnitude of the peak is close to…