Extending Hudson's theorem to mixed quantum states
According to Hudson’s theorem, any pure quantum state with a positive Wigner function is necessarily a Gaussian state. Here, we make a step toward the extension of this theorem to mixed quantum states by finding upper and lower bounds on the degree of non-Gaussianity of states with positive Wigner f...
| Päätekijät: | , , |
|---|---|
| Muut tekijät: | |
| Aineistotyyppi: | Artikkeli |
| Kieli: | en_US |
| Julkaistu: |
American Physical Society
2011
|
| Linkit: | http://hdl.handle.net/1721.1/64931 |