Phys. Rev. Lett. 55, 2745–2748 (1985)Measurement of the Wigner FunctionReceived 11 February 1985; published in the issue dated 16 December 1985 An operational procedure is given for determining experimentally, in principle at least, the Wigner function for an ensemble of particles. This manner of "measuring" a quantum state, whether pure or mixed, via its Wigner function, seems the simplest possible, and closely parallels the method one might use in classical mechanics to determine a (true) phase-space probability density. © 1985 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.55.2745
DOI:
10.1103/PhysRevLett.55.2745
PACS:
03.65.Bz, 02.50.+s, 05.30.Ch
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