Mapping of Euclidean resonance on static resonant tunneling

Details Mapping of Euclidean resonance on static resonant tunneling Mapping of Euclidean resonance on static resonant tunneling

2004-07-20

arxiv.org/abs/quant-ph/0407163v1

Physics

Quantum Physics

4 figures

Scientific paper

Quantum tunneling through an almost classical potential barrier can be strongly enhanced by a nonstationary field so that the penetration through the barrier becomes not exponentially small. This constitutes an extremely unusual phenomenon of quantum physics called Euclidean resonance. A certain nonstationary barrier is proposed with a very low WKB tunneling rate. The quantum dynamics of this barrier is mapped on resonant tunneling across a static double barrier with a resonant level inside. The real penetration through the dynamical barrier is not exponentially small providing an example of Euclidean resonance. Therefore, the Schoedinger equation allows solutions of the type of Euclidean resonance. The counterintuitive phenomenon of Euclidean resonance is a dynamical analogue of static resonant tunneling.

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