A Non-Negative Wigner-Type Distribution

Cartwright, N.D.

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.

Citation

Cartwright, N. (1975). A Non-Negative Wigner-Type Distribution. Physica A: Statistical Mechanics and its Applications, 83(1), 210-212. https://doi.org/10.1016/0378-4371%2876%2990145-x

• Journal Article Type: Article
• Publication Date: 1975
• Deposit Date: Aug 25, 2015
• Journal: Physica A: Statistical Mechanics and its Applications
• Print ISSN: 0378-4371
• Publisher: Elsevier
• Volume: 83
• Issue: 1
• Pages: 210-212
• DOI: https://doi.org/10.1016/0378-4371%2876%2990145-x