A non-negative Wigner-type distribution

N.D. Cartwright

Physica A: Statistical Mechanics and its Applications, 1975, vol. 83, issue 1, 210-212

Abstract: The Wigner function, which is commonly used as a joint distribution for non-commuting observables, is shown to be non-negative in all quantum states when smoothed with a gaussian whose variances are greater than or equal to those of the minimum uncertainty wave packet.

Date: 1975
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:83:y:1975:i:1:p:210-212

DOI: 10.1016/0378-4371(76)90145-X

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