CMT Seminar - Snir Gazit, UC-Berkeley - 11:30am, Smith Seminar Room (1080 PRB)

[Longbrake, Patricia]

Please join us on Monday, February 16th for the Condensed Matter Theory Seminar presented by Snir Gazit, University of California-Berkeley at 11:30am in the Smith Seminar Room (1080 PRB).

TITLE:  "Dynamics near quantum criticality"

ABSTRACT:  The Hallmark of quantum critical phenomena is the emergence of universal energy scales near the quantum phase transition. I will present work studying the critical excitation spectrum of the two dimensional superfluid to insulator transition.  In particular, I will show that, in the superfluid phase, the amplitude (Higgs) mode survives, as a well-defined resonance, arbitrarily close to the critical point.

In addition, I will demonstrate that the critical capacitance serves as a measure to the elusive dual vortex superfluid stiffness in the Mott phase.  The predictions are pertinent to recent experiments in cold atomic systems and disordered superconductors.


Thank you,
Trisch
2-2778

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