Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 28: Quantum information: Atoms and ions IV
Q 28.3: Vortrag
Dienstag, 18. März 2014, 14:30–14:45, UDL HS3038
Effect of interparticle interaction in a free-oscillation atomic interferometer — •Thomás Fogarty1,2, Anthony Kiely1, Steve Campbell1,2, and Thomas Busch1,2 — 1Physics Department, University College Cork, Cork, Ireland — 2Quantum Systems Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
We investigate the dynamics of two interacting bosons repeatedly scattering off a beam-splitter in a free oscillation atom interferometer. Using the interparticle scattering length and the beam-splitter probabilites as our control parameters, we show that even in a simple setup like this a wide range of strongly correlated quantum states can be created. To quantify the usefullness of the states which are created we calculate the quantum Fisher information and we also explore the reduced state of the gas. We also show that we can dynamically create a strongly correlated state known as the NOON state, which maximizes the quantum Fisher information and is a foremost state in quantum metrology.