Hybrid entanglement concentration assisted with single coherent state
Guo Rui1, Zhou Lan1, 2, Gu Shi-Pu3, Wang Xing-Fu2, Sheng Yu-Bo1, †,
       

Schematic diagram showing the principle of the proposed ECP for arbitrary W-type HES. Alice, Bob, and Charlie share the HES, and own the hybrid qubits a, b, and c, respectively. Alice and Charlie prepare the ancillary single coherent states d and e, respectively.