Distinguishability of hyperentangled Bell state by linear evolution and local projective measurement

Details Distinguishability of hyperentangled Bell state by linear evolution and local projective measurement Distinguishability of hyperentangled Bell state by linear evolution and local projective measurement

2011-09-07

arxiv.org/abs/1109.1584v1

Physical Review A 84, 022340 (2011)

Physics

Quantum Physics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevA.84.022340

Measuring an entangled state of two particles is crucial to many quantum communication protocols. Yet Bell state distinguishability using a finite apparatus obeying linear evolution and local measurement is theoretically limited. We extend known bounds for Bell-state distinguishability in one and two variables to the general case of entanglement in $n$ two-state variables. We show that at most $2^{n+1}-1$ classes out of $4^n$ hyper-Bell states can be distinguished with one copy of the input state. With two copies, complete distinguishability is possible. We present optimal schemes in each case.

Affiliated with

Also associated with

No associations

Rating

Distinguishability of hyperentangled Bell state by linear evolution and local projective measurement 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 of hyperentangled Bell state by linear evolution and local projective measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distinguishability of hyperentangled Bell state by linear evolution and local projective measurement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-474255