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Special Physics colloquium-"Dynamics & Topology of Driven Quantum Systems," Michael Kolodrubetz, Univ. of California @ Berkeley, 4pm, Berthoud Hall 108

2017-03-20 4:00pm

Special Physics colloquium - March 20, 2017, 4pm, Berthoud Hall 108

Michael Kolodrubetz

University of California at Berkeley / Lawrence Berkeley National Laboratory

"Dynamics & Topology of Driven Quantum Systems"

Abstract:  Abstract:  Topological physics is one of the most active areas in condensed matter, giving rise to a host of novel phases of matter from integer and fractional quantum Hall systems to topological insulators and Weyl semimetals. These materials exhibit robust electronic properties that arise from non-trivial structures in the Berry phase, a geometric property of the quantum wave function that was originally considered in adiabatic transport of spin systems. In this talk, I will explore the natural connection between geometry, topology and dynamics. I will highlight a variety of ways in which non-equilibrium quantum physics can be used to engineer and measure interesting geometric and topological properties. In particular, I will  illustrate these ideas with two recent works of experimental relevance, namely the dynamics of periodically-driven surface states in topological insulators and the ground state topology of systems of interacting superconducting qubits.

To view the full schedule, please visit:  http://physics.mines.edu/PH-physics-colloquia