Physics – Quantum Physics
Scientific paper
2007-04-16
Physics
Quantum Physics
3 pages, no figures, corrected typos, text essentially amended
Scientific paper
We propose a simple test of quantumness which can decide whether for the given set of accessible experimental data the classical model is insufficient. Take two observables $ A,B$ such that for any state $\psi$ their mean values satisfy $0\leq <\psi|A|\psi>\leq <\psi|B|\psi>\leq 1$. If there exists a state $\phi$ such that the second moments fulfill the inequality $<\phi|A^2|\phi> ><\phi|B^2|\phi>$ then the system cannot be described by the classical probabilistic scheme. An example of an optimal triple $(A,B,\phi)$ in the case of a qubit is given.
Alicki Robert
Ryn Nicholas Van
No associations
LandOfFree
A simple test of quantumness for a single system 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 A simple test of quantumness for a single system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A simple test of quantumness for a single system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-44228