Measuring the individual elements of the optical density matrix
Author(s)
Pregnell, KL
Pegg, DT
Griffith University Author(s)
Year published
2003
Metadata
Show full item recordAbstract
Most methods for experimentally reconstructing the quantum state of light involve determining a quasiprobability distribution such as the Wigner function. In this paper we present a scheme for measuring individual density matrix elements in the photon number state representation. Remarkably, the scheme is simple, involving two beam splitters and a reference field in a coherent state.Most methods for experimentally reconstructing the quantum state of light involve determining a quasiprobability distribution such as the Wigner function. In this paper we present a scheme for measuring individual density matrix elements in the photon number state representation. Remarkably, the scheme is simple, involving two beam splitters and a reference field in a coherent state.
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Book Title
Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing