The Budapest Quantum Optics Group

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The emergence of classicality from continuous observation (at the example of a BEC)

Thomas Konrad

(School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa)

Time: Tue Oct 22 13:00:00 2013
Location: Building 1, Room 114, Auditorium

At the example of a Bose–Einstein-Condensate oscillating in a double-well potential, we study the question how its dynamics is changed in the course of a continuous measurement of the atom number in one well. Different to other approaches, we focus on the selective regime of measurement and find in the presence of moderate atomic interactions the emergence of classical properties, such as a positive Wigner function and classical (mean-field) orbits. We address the question under which circumstances continuous observation can lead to the emergence of classical properties.