Endoscopic Tomography and Quantum-Non-Demolition

Details Endoscopic Tomography and Quantum-Non-Demolition Endoscopic Tomography and Quantum-Non-Demolition

1998-12-17

arxiv.org/abs/quant-ph/9812043v1

Phys.Rev. A59 (1999) 718

Physics

Quantum Physics

RevTeX, 10 pages, 1 eps figure with psfig. To appear In Physical Review A 59 (January 1999)

Scientific paper

10.1103/PhysRevA.59.718

We propose to measure the quantum state of a single mode of the radiation field in a cavity---the signal field---by coupling it via a quantum-non-demolition Hamiltonian to a meter field in a highly squeezed state. We show that quantum state tomography on the meter field using balanced homodyne detection provides full information about the signal state. We discuss the influence of measurement of the meter on the signal field.

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