Tripartite operation sharing with a six-particle maximally entangled state

Zhanjun Zhang, Lei Zhang, Bin Zhuge +2 more

Zhanjun Zhang, Wanbin Zhang, Biao‐Liang Ye

Zhanjun Zhang, Li Deng, Lei Zhang +2 more

Yun Ma, Zhong-Rong Shi, Hao Yuan

Based on classical communication and some local quantum operations, a novel tripartite operation sharing scheme is put forwarded by employing a six-qubit absolutely maximally entangled state as quantum channel. The finally successful probability of this scheme is deterministic and the target quantum operation to be shared is arbitrary. Besides, the optimized entanglement structure ensures that the numbers of necessary quantum operations to accomplish the task is relatively less. Furthermore, analysis shows that the present scheme is feasible with the current experimental technology.

Xiu-Li Tu

Quantum information splitting(QIS) or quantum state sharing is the generalization of classical secret sharing schemes to the quantum scenario.In QIS,a piece of quantum information(in the form of a quantum state) is divided and distributed to a number of receivers.A scheme of splitting two-qubit states was proposed by using six-particle maximally entangled state as the quantum channel.Alice first performs two Bell-basis measurement and announces her measurement outcome and assigns Charlie(Bob) to reconstruct the original unknown state.If the controllers Bob(Charlie) agree to help Charlie(Bob) obtain the original state,they should perform single-particle measurements on their respective qubits.After the sender performs Bell-basis measurements on her particles,and the cooperators operate single-particle measurements on their particles,the state receiver can reconstruct the original state of the sender by applying the appropriate unitary operation.

Rota, Massimiliano