Not necessary but sufficient condition for the positivity of generalized Wigner functions
Mourgues, G. ; Feix, M. R. ; Andrieux, J. C. ; Bertrand, P.
College Park, Md. : American Institute of Physics (AIP)
Published 1985
College Park, Md. : American Institute of Physics (AIP)
Published 1985
| ISSN: |
1089-7658
|
|---|---|
| Source: |
AIP Digital Archive
|
| Topics: |
Mathematics
Physics
|
| Notes: |
Many authors, both in quantum mechanics and signal theory, are concerned with a condition of positivity for the generalized Wigner functions. They give (and use) as necessary and sufficient the condition that the kernel be the characteristic function of another Wigner function. It is shown that the condition is not necessary, but only sufficient.
|
| Type of Medium: |
Electronic Resource
|
| URL: |