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This Week at Physics

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Event Number 4862

  Friday, October 19th, 2018

Physics Department Colloquium
The Physics of Divergence: Resurgence and Non-Perturbative Physics
Time: 3:30 pm
Place: 2241 Chamberlin Hall
Speaker: Gerald Dunne, University of Connecticut
Abstract: Solvable interesting problems in physics are very rare. Almost all nontrivial problems require approximations, the most common of which is perturbation theory. We are all familiar with the basic idea of perturbation theory, but it holds some surprising secrets, which can be understood physically. These secrets also introduce some novel concepts from a new mathematical formalism called "resurgent asymptotics". The talk is largely non-technical, concentrating on the key physical ideas and examples, illustrated with applications in quantum mechanics and quantum field theory.
Host: Alex Levchenko
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