Multibarrier tunneling

Details Multibarrier tunneling Multibarrier tunneling

2002-09-02

arxiv.org/abs/quant-ph/0209018v1

Phys.Rev. E67 (2003) 016609

Physics

Quantum Physics

RevTex, 7 pages, 1 eps figure

Scientific paper

10.1103/PhysRevE.67.016609

We study the tunneling through an arbitrary number of finite rectangular opaque barriers and generalize earlier results by showing that the total tunneling phase time depends neither on the barrier thickness nor on the inter-barrier separation. We also predict two novel peculiar features of the system considered, namely the independence of the transit time (for non resonant tunneling) and the resonant frequency on the number of barriers crossed, which can be directly tested in photonic experiments. A thorough analysis of the role played by inter-barrier multiple reflections and a physical interpretation of the results obtained is reported, showing that multibarrier tunneling is a highly non-local phenomenon.

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