1.
Phys Rev Lett
; 107(11): 113604, 2011 Sep 09.
Article
in English
| MEDLINE
| ID: mdl-22026668
ABSTRACT
Although squeezed states are nonclassical states, so far, their nonclassicality could not be demonstrated by negative quasiprobabilities. In this work we derive pattern functions for the direct experimental determination of so-called nonclassicality quasiprobabilities. The negativities of these quantities turn out to be necessary and sufficient for the nonclassicality of an arbitrary quantum state and are therefore suitable for a direct and general test of nonclassicality. We apply the method to a squeezed vacuum state of light that was generated by parametric down-conversion in a second-order nonlinear crystal.
2.
J Can Assoc Radiol
; 25(3): 211-3, 1974 Sep.
Article
in English
| MEDLINE
| ID: mdl-4417544
Subject(s)
Ribs , Scoliosis/etiology , Synostosis/etiology , Thoracic Outlet Syndrome/complications , Adult , Angiography , Cervical Vertebrae , Humans , Male , Scoliosis/diagnostic imaging , Subclavian Artery/diagnostic imaging , Synostosis/diagnostic imaging , Thoracic Outlet Syndrome/diagnostic imaging , Thoracic Vertebrae
3.
Radiology
; 94(1): 121-5, 1970 Jan.
Article
in English
| MEDLINE
| ID: mdl-4983071