[ExI] Quantum Tunneling

hartreef at hartreef.cnc.net hartreef at hartreef.cnc.net
Wed Mar 20 17:09:53 UTC 2019


Isn't that one attosecond is to a second as one second is to 32 billion years.

But what's nine orders of magnitude among friends. :).

Kyle Webb

On Wed, 20 Mar 2019 12:29:07 -0400, John Clark  wrote:
A new upper bound on the time it takes for an electron to get through a barrier by Quantum Tunneling has been found. They found it takes less than 1.8 attoseconds, perhaps 1.8 attoseconds less. They say their experimental results are "in agreement with recent theoretical findings" and "present a compelling argument for instantaneous tunnelling".  One attosecond is to a second as one second is to 32 years.

Tunnelling time in atomic hydrogen


John K Clark

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