Possibility of the tunneling time determination

Details Possibility of the tunneling time determination Possibility of the tunneling time determination

2001-01-30

arxiv.org/abs/quant-ph/0101136v1

Phys.Rev. A (01 April 2001)

Physics

Quantum Physics

8 figures

Scientific paper

10.1103/PhysRevA.63.052107

We show that it is impossible to determine the time a tunneling particle spends under the barrier. However, it is possible to determine the asymptotic time, i.e., the time the particle spends in a large area including the barrier. We propose a model of time measurements. The model provides a procedure for calculation of the asymptotic tunneling and reflection times. The model also demonstrates the impossibility of determination of the time the tunneling particle spends under the barrier. Examples for delta-form and rectangular barrier illustrate the obtained results.

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