Efficient two-step entanglement concentration for arbitrary W states

Details Efficient two-step entanglement concentration for arbitrary W states Efficient two-step entanglement concentration for arbitrary W states

2012-02-14

arxiv.org/abs/1202.3019v1

Physics

Quantum Physics

10 pages, 4 figures

Scientific paper

We present two two-step practical entanglement concentration protocols (ECPs) for concentrating an arbitrary three-particle less-entangled W state into a maximally entangled W state assisted with single photons. The first protocol uses the linear optics and the second protocol adopts the cross-Kerr nonlinearity to perform the protocol. In the first protocol, based on the post-selection principle, three parties say Alice, Bob and Charlie in different distant locations can obtain the maximally entangled W state from the arbitrary less-entangled W state with a certain success probability. In the second protocol, it dose not require the parties to posses the sophisticated single-photon detectors and the concentrated photon pair can be retained after performing this protocol successfully. Moreover, the second protocol can be repeated to get a higher success probability. Both protocols may be useful in practical quantum information applications.

Affiliated with

Also associated with

No associations

Rating

Efficient two-step entanglement concentration for arbitrary W states 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 Efficient two-step entanglement concentration for arbitrary W states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient two-step entanglement concentration for arbitrary W states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-89224