Measurement-based quantum repeaters

Details Measurement-based quantum repeaters Measurement-based quantum repeaters

2012-04-10

arxiv.org/abs/1204.2178v1

Physics

Quantum Physics

Scientific paper

We introduce measurement-based quantum repeaters, where small-scale measurement-based quantum processors are used to perform entanglement purification and entanglement swapping in a long-range quantum communication protocol. In the scheme, pre-prepared entangled states stored at intermediate repeater stations are coupled with incoming photons by simple Bell-measurements, without the need of performing additional quantum gates or measurements. We show how to construct the required resource states, and how to minimize their size. We analyze the performance of the scheme under noise and imperfections, with focus on small-scale implementations involving entangled states of few qubits. We find measurement-based purification protocols with significantly improved noise thresholds. Furthermore we show that already resource states of small size suffice to significantly increase the maximal communication distance. We also discuss possible advantages of our scheme for different set-ups.

Affiliated with

Also associated with

No associations

Rating

Measurement-based quantum repeaters 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 Measurement-based quantum repeaters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement-based quantum repeaters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-645430