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Physics Colloquium: The Classical Mechanics of Non-adiabatic Quantum Transport
Wednesday, Feb 25, 2015
4 p.m. - 5:15 p.m. Location: SLC 1.102

Dr. David Dunlap (University of New Mexico)

        Quantum dynamics is often difficult to understand intuitively, leading to unsuccessful attempts to compare findings with the predictions of classical mechanics. One problem is that physical "understanding" is taken to mean that the position x(t) and momentum p(t) can be predicted from Hamilton's equations of motion even when it is better to use other conjugate variables. A clear physical picture is also difficult to achieve for systems with many degrees of freedom evolving on multiple time scales, and in many such cases developing useful classical intuition is more wishful thinking than reality.  In this talk I will describe consistent classical descriptions for two important examples of non-adiabatic charge transport: (i) electron tunneling between weakly coupled molecules (the spin-boson problem), and (ii) the motion of an electron interacting with a metal surface (the plasmon-polaron). Surprising new behavior will be revealed for both. 

Contact Info:
Michael Kesden, 972-883-3598
Questions? Email me.

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