Concentration for unknown atomic entangled states via cavity decay
Zhuo‐Liang Cao, Lihua Zhang, Ming Yang · Physical Review A · 2006
We present a physical scheme for entanglement concentration of unknown atomic entangled states via cavity decay. In the scheme, the atomic state is used as a stationary qubit and the photonic state as a flying qubit, and a close maximally entangled state can be obtained from pairs of partially entangled states probabilistically.