Henseler, M. and Dittrich, T. and Richter, Klaus (2000) Signatures of Chaos and Tunneling in AC-Driven Quantum Scattering. Europhysics Letters 49 (3), pp. 289-295.
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We study classical and quantum scattering in periodically driven mesoscopic electronic devices. The ac-driven square potential well, a prototypical example, is shown to be a chaotic scatterer. Quantum transport in the nonlinear regime of strong driving is investigated in the Floquet framework. In the deep quantum regime, scattering into and out of bound states of an effective potential explains most of the structure in reflection, transmission, and dwell time, controllable via the external driving. For large amplitude and frequency, a single ac-driven quantum well exhibits dynamical tunneling. We identify signatures of the classical phase-space structure in Wigner-function representations of propagated wavepackets.
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 20:57|