Quantum repeaters free of polarization disturbance and phase noise

Details Quantum repeaters free of polarization disturbance and phase noise Quantum repeaters free of polarization disturbance and phase noise

2009-02-26

arxiv.org/abs/0902.4498v1

Phys. Rev. A 79, 044302 (2009)

Physics

Quantum Physics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevA.79.044302

Original quantum repeater protocols based on single-photon interference suffer from phase noise of the channel, which makes the long-distance quantum communication infeasible. Fortunately, two-photon interference type quantum repeaters can be immune to phase noise of the channel. However, this type quantum repeaters may still suffer from polarization disturbance of the channel. Here we propose a quantum repeaters protocol which is free of polarization disturbance of the channel based on the invariance of the anti-symmetric Bell state $|\psi^->=(|H>|V>-|V>|H>)/\sqrt{2}$ under collective noise. Our protocol is also immune to phase noise with the Sagnac interferometer configuration. Through single-atom cavity-QED technology and linear optics, this scheme can be implemented easily.

Affiliated with

Also associated with

No associations

Rating

Quantum repeaters free of polarization disturbance and phase noise 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 Quantum repeaters free of polarization disturbance and phase noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum repeaters free of polarization disturbance and phase noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-253996