Quantum-state homodyne measurement with vacuum ports
- 1 July 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 54 (1) , 856-862
- https://doi.org/10.1103/physreva.54.856
Abstract
We show that the quantum state of an N-mode light field can be reconstructed from the difference statistics recorded in multiport homodyning with N unused input ports. The theory is applied to balanced homodyne six-port detection, which is shown to be suited for measuring the Q function of a single-mode radiation field. © 1996 The American Physical Society.Keywords
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