Transient interference of transmission and incidence

Details Transient interference of transmission and incidence Transient interference of transmission and incidence

2000-05-15

arxiv.org/abs/quant-ph/0005050v1

Physics

Quantum Physics

4 pages of text, 6 postscript figures, revtex

Scientific paper

10.1103/PhysRevA.64.012710

Due to a transient quantum interference during a wavepacket collision with a potential barrier, a particular momentum, that depends on the potential parameters but is close to the initial average momentum, becomes suppressed. The hole left pushes the momentum distribution outwards leading to a significant constructive enhancement of lower and higher momenta. This is explained in the momentum complex-plane language in terms of a saddle point and two contiguous ``structural'' poles, which are not associated with resonances but with incident and transmitted components of the wavefunction.

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