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Tuesday, September 20, 2016 10:30 am - 10:30 am EDT (GMT -04:00)

Seminar: Sacha Schwarz

Nonlocal Correlations between Frequency Entangled Two-Qudit States

Sacha Schwarz, University of Bern

In my talk, I will demonstrate our method to experimentally encode qudits in the energy spectrum of broadband entangled photons generated by parametric down-conversion and detected in coincidence by sum frequency generation. Employing techniques from ultrafast optics to shape fs-laser pulses, the two-photon spectrum is discretized into frequency bins.

Thursday, September 22, 2016 11:00 am - 11:00 am EDT (GMT -04:00)

Seminar: Lorenzo M. Procopio

Single-photon implementation of an indefinite causal order

Lorenzo M. Procopio, University of Vienna

Investigating the role of causal order in quantum mechanics has recently revealed that the temporal distribution of events may not be a-priori well-defined in quantum theory. Although this has triggered a growing interest on the theoretical side, the existence of processes without a causal order is an experimental question. In this talk, I will present an optical implementation of an indefinite causal-order structure called quantum switch for two purposes; to execute an algorithm and to verify a causally non-separable process.

Friday, September 23, 2016 2:00 pm - 2:00 pm EDT (GMT -04:00)

Seminar: Imran Khan

Continuous-variable quantum communication activities in Erlangen, Germany

Imran Khan, Max Planck Institute for the Science of Light

I will present our ongoing work on the subject of experimental quantum

communication using continuous variables, which is conducted at the Max

Planck Institute for the Science of Light in Erlangen, Germany. The work

is performed in the Quantum Information Processing group of Dr.

Christoph Marquardt within the division of Prof. Dr. Gerd Leuchs.

My talk will encompass the following topics:

Monday, September 26, 2016 2:00 pm - 2:00 pm EDT (GMT -04:00)

Seminar: Joseph Choi

Superchiral Field, Phase Modulation, Optical Cloaking

Joseph Choi, University of Rochester

Quantum mechanical or classical interactions between light and matter can demonstrate interesting effects even in simplified models. I will present three such works. The first is a semi-classical theory that corrects the enhancement from a "superchiral" field, by including the magnetic susceptibility term which is usually ignored because of how small it is.