Tunneling Time

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Recorded: 11/25/2017 Released: 7/6/2018

Jim and Randy discuss the tunneling time problem: just how long does quantum tunneling take? No definitive answer to this question exists, but people have been trying to answer it for at least eighty years -- with answers that span from instantaneous to subluminal. In this episode, we discuss several different ideas and how experiments at ETH-Zürich have helped clarify the issue.

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Notes:

1. The papers we read for this program:

• Hauge, E.H., and J.A. Stovneng, "Tunneling Times: A Critical Review" Reviews of Modern Physics 61, 917 (1989).
• Landsman, A.S., and U. Keller, "Attosecond Science and the Tunelling Time Problem" Physics Reports 547, 1 (2015). [ETH Zürich (free)]

2. The group responsible for the attoclock measurements at ETH-Zürich, including Landsman and Keller.

3. Please visit and comment on our subreddit, and if you can help us keep this going by contributing to our Patreon, we'd be grateful.

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