Transient Response of a Tunneling Device Obtainefrom the Wigner Function
- 1 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 57 (22) , 2853-2856
- https://doi.org/10.1103/physrevlett.57.2853
Abstract
A model of an open quantum system is presented in which irreversibility is introduced via boundary conditions on the Wigner function. The model is applied to the quantum-well resonant-tunneling diode. The calculations reproduce the negative-resistance characteristic of the device, and indicate that the tunneling current approaches steady state within a few hundred femtoseconds of a sudden change in applied voltage.Keywords
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