Efficient W state entanglement concentration using quantum-dot and optical microcavities
Quantum Physics
2015-06-05 v1
Abstract
We present an entanglement concentration protocols (ECPs) for less-entangled W state with quantum-dot and microcavity coupled system. The present protocol uses the quantum nondemolition measurement on the spin parity to construct the parity check gate. Different from other ECPs, this less-entangled W state with quantum-dot and microcavity coupled system can be concentrated with the help of some single photons. The whole protocol can be repeated to get a higher success probability. It may be useful in current quantum information processing.
Cite
@article{arxiv.1206.5664,
title = {Efficient W state entanglement concentration using quantum-dot and optical microcavities},
author = {Yu-Bo Sheng and Lan Zhou and Chuan Wang and Sheng-Mei Zhao},
journal= {arXiv preprint arXiv:1206.5664},
year = {2015}
}
Comments
9 pages, 6 figures