A Non-Negative Wigner-Type Distribution
(1975)
Journal Article
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
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 uncer... Read More about A Non-Negative Wigner-Type Distribution.