Science Café College of Science and Mathematics
North Dakota State University

Our Next Science Café:

March 10, 2020, 7pm at Stoker’s Basement, Hotel Donaldson

Presenter: Luiz A. Manzoni

Associate Professor of Physics, Chair, Concordia College

Title: Do quantum tunneling times exist?

Quantum tunneling is one of the most striking consequences of quantum mechanics. It is a generally well-understood phenomenon, with several applications. However, the question of how long it takes for a particle to tunnel has defied physicists since the early days of quantum mechanics. I will describe some of the difficulties plaguing the field, up to the current and heated debate in the literature, discuss the origin of the problem - namely, that time is not an observable in quantum mechanics - and describe some my group's efforts to address the problem using quantum clocks.

General Information

Our Science Cafés feature

  • A presentation by a scientist
  • Discussion
    • have a conversation with the scientist
    • talk among yourselves

Free and open to the public.

Attendees must be 21 or older, or accompanied by a parent or guardian.

For more information, contact Diane Goede at or (701) 231-7411.

Science Café presentations are about one hour long; there is some extra time for discussions. The location is:

Stoker’s Basement
Hotel Donaldson
101 N Broadway
North Dakota
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