Tunneling: From Milliseconds to Attoaseconds

Details Tunneling: From Milliseconds to Attoaseconds Tunneling: From Milliseconds to Attoaseconds

2009-03-14

arxiv.org/abs/0903.2582v1

Physics

Quantum Physics

4 pages

Scientific paper

How much time does a wave packet spent in tunneling a barrier? Quantum mechanical calculations result in zero time inside a barrier. In the nineties analogous tunneling experiments with microwaves were carried out confirming quantum mechanics. Electron tunneling time is hard to measure being extremely short. However, quite recently the atomic ionization tunneling time has been measured. Experimental data of photonic, phononic, and electronic tunneling time is available now. It appears that the tunneling time is a universal property in the investigated time range of twelve orders of magnitude.

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