Phys. Rev. Lett. 70, 1244–1247 (1993)Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuumReceived 16 November 1992; published in the issue dated 1 March 1993 We have measured probability distributions of quadrature-field amplitude for both vacuum and quadrature-squeezed states of a mode of the electromagnetic field. From these measurements we demonstrate the technique of optical homodyne tomography to determine the Wigner distribution and the density matrix of the mode. This provides a complete quantum mechanical characterization of the measured mode. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.1244
DOI:
10.1103/PhysRevLett.70.1244
PACS:
42.50.Dv, 42.65.Ky
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