2013 Fall Graduate Colloquium Series: Bao-Fei Li/Zack Liege

DateNovember 15, 2013Time3:35 - 5:00 pm
LocationBaylor Sciences Building, Room E.125
Description
Bao-Fei Li

Dirac Oscillator

Dirac Oscillator was first proposed more than 20 years ago. Since then, as a paradigm of solvable relativistic systems, its properties and possible applications have been extensively studied in nuclear physics, quantum optics, and etc. In this talk, I'll address the experimental realization of one dimensional Dirac oscillator by mapping it onto a tight-binding system which is implemented as a microwave system by a chain of coupled dielectric disks. As a result, the resonances of the finite microwave system will yield the spectrum of one dimensional Dirac oscillator with and without a mass term.

My talk is based on the paper "First experimental Realization of the Dirac Oscillator" (PRL 111,170405) by J.A. Franco-Villafane, E.Sadurni, S.Barkhofen, U.Kuhl, F.Mortessagne and T.H.Seligman. It was published on Oct. 25, 2013.

Zack Liege

QKD and Air-to-Ground Quantum Communication

Quantum Key Distribution provides several advantages over classical encryption techniques. It is impossible for a third party to intercept a quantum communication without the intended recipient knowing of the intrusion. In this paper, experimenters applied current quantum communication technique using photons to an air-to-ground situation. Until this point, qubits had only been transmitted via stationary free space points, or via cables. This was the first successful demonstration that quantum communication could be used to transmit signals between moving targets.

SOURCE: Air-to-Ground Quantum Communication, Sebastian Naureth, Florian Moll, Markus Rau, Christian Fuchs, Joachim Horwath, Stefan Frick, and Harald Weinfurter,March 31, 2013

For more information, please contact: Dr. Ken Park 254-710-2282

PublisherDepartment of Physics
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