February 16, 2015
11:30 am
-
12:30 pm
1080 Physics Research Building - Smith Seminar Room
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2015-02-16 12:30:00
2015-02-16 13:30:00
CMT Seminar - Snir Gazit (University of California - Berkeley) "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.
1080 Physics Research Building - Smith Seminar Room
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2015-02-16 11:30:00
2015-02-16 12:30:00
CMT Seminar - Snir Gazit (University of California - Berkeley) "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.
1080 Physics Research Building - Smith Seminar Room
America/New_York
public
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.
