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Abstract: How much time does a wave packet spent in tunneling a barrier? Quantummechanical calculations result in zero time inside a barrier. In the ninetiesanalogous tunneling experiments with microwaves were carried out confirmingquantum mechanics. Electron tunneling time is hard to measure being extremelyshort. However, quite recently the atomic ionization tunneling time has beenmeasured. Experimental data of photonic, phononic, and electronic tunnelingtime is available now. It appears that the tunneling time is a universalproperty in the investigated time range of twelve orders of magnitude.

Autor: Guenter Nimtz

Fuente: https://arxiv.org/

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