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Structural Glasses with Cold Polar Molecules

Event Details

Event Dates: 

Wednesday, December 11, 2013 - 12:30pm

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Dr. Wolfgang Lechner

Speaker Affiliation(s): 

Institut fur theoretische Physik, Universitat Innsbruck
Seminar Type/Subject

Scientific Seminar Type: 

  • JILA Public Seminar

Event Details & Abstract: 

The realization of cold ensembles of polar molecules has opened a new pathway to explore the dynamics of quantum many body systems with strong, long-range and anisotropic dipolar interactions. While theoretical studies have so far focused on the equilibrium phases in the highly degenerate quantum regime , I will focus in my talk on non-equilibirum dynamics in the regime where quantum and thermal fluctuations are of the same order of magnitude. I will present a study on the glass transition in the presence of quantum fluctuations. I will show, how the glass phase can be prepared in a bilayer system of ultracold dipolar molecules and present results on classical and quantum glassy behavior, characterized by long tails in the relaxation time and dynamical heterogeneity. I will also present experimental accessible order parameters based on marker molecules, distinguished by properly chosen internal levels, and find quantum features of dynamical heterogeneity.

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