Math & Computer Science
November 19, 2012
Dr. Chris Godsil, University of Waterloo
Friday - Nov. 23, 2012
noon to 12:50 p.m.
Title: Continuous Quantum Walks on Graphs
Abstract: If A is the adjacency matrix of a graph X , then the matrix exponential U (t) = exp(itA) determines what physicists term a continuous quantum walk. They ask questions such as: for which graphs are the vertices a and b and a t such that |U (t)a,b | = 1? The basic problem is to relate the physical properties of the system with properties of the underlying graphs, and to study this we make use of results from the theory of graph spectra, number theory, ergodic theory. . . . My talk will present some of the progress on this topic.
SOME REFRESHMENTS! EVERYONE WELCOME!
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