Entanglement purification based on hybrid entangled state using quantum-dot and microcavity coupled system
Chuan Xi Wang, Yong Zhang, Ru Zhang · Optics Express · 2011
We theoretically investigate an entanglement purification protocol with photon and electron hybrid entangled state resorting to quantum-dot spin and microcavity coupled system. The present system is used to construct the parity check gate which allows a quantum non-demolition measurement on the spin parity. The cavity-spin coupled system provides a novel experimental platform of quantum information processing with photon and solid qubit.