Physics – Quantum Physics
Scientific paper
2003-11-06
Phys.Rev.Lett.92, 177905(2004).
Physics
Quantum Physics
5 pages
Scientific paper
10.1103/PhysRevLett.92.177905
We show that a set of linearly independent quantum states $\{(U_{m,n}\otimes I)\rho ^{AB}(U_{m,n}^{\dagger}\otimes I)\}_{m,n=0}^{d-1}$, where $U_{m,n}$ are generalized Pauli matrices, cannot be discriminated deterministically or probabilistically by local operations and classical communications (LOCC). On the other hand, any $l$ maximally entangled states from this set are locally distinguishable if $l(l-1)\le 2d$. The explicit projecting measurements are obtained to locally discriminate these states. As an example, we show that four Werner states are locally indistinguishable.
No associations
LandOfFree
Distinguishability and indistinguishability by LOCC 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 Distinguishability and indistinguishability by LOCC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distinguishability and indistinguishability by LOCC will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-519536