Duality in asymmetric Quantum optical Ramsey interferometers

Details Duality in asymmetric Quantum optical Ramsey interferometers Duality in asymmetric Quantum optical Ramsey interferometers

2003-08-30

arxiv.org/abs/quant-ph/0309006v1

Physics

Quantum Physics

Scientific paper

A formalism have been recently derived [J. Martinez-Linares and D. Harmin, quantum-ph/0306057] allowing one to separate different sources of which-way information contributing to the total distinguishability D of the ways in a two-way interferometer. Here we apply the formalism to a Quantum Optical Ramsey Interferometer where both sources, the a-priori predictability of the ways P and the quantum "Quality" Q of the which-way detector, stems from the same physical interaction. We show that the formalism is able to separate both sources of which-way information. Moreover, it is shown that Q succeeds in quantifying the amount of quantum which-way information stored in the which-way detector even in cases where D does not.

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