Universal homodyne tomography with a single local oscillator

Details Universal homodyne tomography with a single local oscillator Universal homodyne tomography with a single local oscillator

1999-10-20

arxiv.org/abs/quant-ph/9910085v1

Phys. Rev. A, 61, 013806 (2000).

Physics

Quantum Physics

12 pages, 5 figures (8 eps files)

Scientific paper

10.1103/PhysRevA.61.013806

We propose a general method for measuring an arbitrary observable of a multimode electromagnetic field using homodyne detection with a single local oscillator. In this method the local oscillator scans over all possible linear combinations of the modes. The case of two modes is analyzed in detail and the feasibility of the measurement is studied on the basis of Monte-Carlo simulations. We also provide an application of this method in tomographic testing of the GHZ state.

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