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Atomic Physics Seminars

ics SPECIAL ATOMIC SEMINAR
Tuesday, November 30, 1999
4:00 PM
Physics Building, Room 204
Note special date.
Note special time.
Prof. Alexander Sergienko [Host: Olivier Pfister]
Boston University
"Polarized Entangled Photons In Quantum Communications and Optical Metrology"
ABSTRACT:
A pair of photons (two-photon state) generated in the nonlinear process of type-II spontaneous parametric down conversion (SPDC) is strongly entangled in energy, polarization, time, and space (momentum). Although these two-photon entangled states have primarily been used in fascinating tests of some of the counterintuitive foundations of the quantum theory, their quantum features are also a powerful generator of novel practical applications which either outperform their classical counterparts or do not have any classical analogues at all. We shall discuss a several experimental results in the area of quantum communications and optical measurement.

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