
TL;DR
This paper reviews recent experimental measurements of tunneling times across various systems, highlighting the universality of tunneling time as an intrinsic property independent of the specific field or particles involved.
Contribution
It compiles and analyzes recent experimental data on tunneling times, proposing the concept of a universal tunneling time applicable across different physical systems.
Findings
Tunneling time appears to be a universal property.
Recent measurements include photonic, phononic, and electronic systems.
Tunneling time is independent of the type of field or particle.
Abstract
How much time does a tunneling wave packet spent in traversing a barrier? Quantum mechanical calculations result in zero time inside a barrier . In the nineties analogous tunneling experiments with microwaves were carried out. The results agreed with quantum mechanical calculations. Electron tunneling time is hard to measure being extremely short and parasitic effects due to the electric charge of electrons may be dominant. However, quite recently the atomic ionization tunneling time has been measured. Experimental data of photonic, phononic, and electronic tunneling time is available now and will be presented. It appears that the tunneling time is a universal property independent of the field in question.
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Taxonomy
TopicsQuantum optics and atomic interactions
