Output state in multiple entanglement swapping

Details Output state in multiple entanglement swapping Output state in multiple entanglement swapping

2003-05-08

arxiv.org/abs/quant-ph/0305044v2

Phys. Rev. A 68, 062301 (2003)

Physics

Quantum Physics

11 pages, 6 figures, RevTeX4

Scientific paper

10.1103/PhysRevA.68.062301

The technique of quantum repeaters is a promising candidate for sending quantum states over long distances through a lossy channel. The usual discussions of this technique deals with only a finite dimensional Hilbert space. However the qubits with which one implements this procedure will "ride" on continuous degrees of freedom of the carrier particles. Here we analyze the action of quantum repeaters using a model based on pulsed parametric down conversion entanglement swapping. Our model contains some basic traits of a real experiment. We show that the state created, after the use of any number of parametric down converters in a series of entanglement swappings, is always an entangled (actually distillable) state, although of a different form than the one that is usually assumed. Furthermore, the output state always violates a Bell inequality.

Affiliated with

Also associated with

No associations

Rating

Output state in multiple entanglement swapping 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 Output state in multiple entanglement swapping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Output state in multiple entanglement swapping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-23749