Direct Sampling of Negative Quasiprobabilities of a Squeezed State

Details Direct Sampling of Negative Quasiprobabilities of a Squeezed State Direct Sampling of Negative Quasiprobabilities of a Squeezed State

2011-05-23

arxiv.org/abs/1105.4591v2

Phys. Rev. Lett. 107, 113604 (2011)

Physics

Quantum Physics

4 pages, 4 figures, supplementary material added

Scientific paper

10.1103/PhysRevLett.107.113604

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.

Affiliated with

Also associated with

No associations

Rating

Direct Sampling of Negative Quasiprobabilities of a Squeezed State does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Direct Sampling of Negative Quasiprobabilities of a Squeezed State, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct Sampling of Negative Quasiprobabilities of a Squeezed State will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-23158