Schemes for Splitting Quantum Information with Four-Particle Genuine Entangled States

• 作 者: 詹佑邦 张群永 王郁武
• 机 构: School of Physics and Electronic Electrical Engineering, Huaiyin Normal University,School of Physica
• 出 处: Communications in Theoretical Physics
• 发表日期: 2010年05期
• 关键词: unitary sender Charlie auxiliary receiver entangled splitting teleportation appl

We propose two schemes for splitting single- and two-qubit states by using four-particle genuine entangledstate as the quantum channel. After the sender performs Bell-basis (or three-partite GHZ- basis) measurements on herparticles, and the cooperators operate single-particle measurements on their particles, the state receiver can reconstructthe original state of the sender by applying the appropriate unitary operation. In particular, in the scheme for splittingtwo-qubit state, the receiver needs to introduce an auxiliary particle and carries out a C-NOT operation.

We propose two schemes for splitting single- and two-qubit states by using four-particle genuine entangled states as the quantum channel. After the sender performs Bell-basis (or three-particular GHZ-basis) measurements on herparticles, 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. In particular, in the scheme for splitting two-qubit state, the receiver needs to introduce an auxiliary particle and carries out a C- NOT operation.