Deterministic assisted clone of an unknown four-particle entangled cluster-type state

doi:10.1088/1674-1056/22/11/110304

中国物理B ›› 2013, Vol. 22 ›› Issue (11): 110304-110304.doi: 10.1088/1674-1056/22/11/110304

Deterministic assisted clone of an unknown four-particle entangled cluster-type state

马松雅^a, 罗明星^b, 孙莹^c

a School of Mathematics and Information Sciences, Henan University, Kaifeng 475004, China;
b School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China;
c Beijing Electronic Science and Technology Institute, Beijing 100070, China

收稿日期:2013-03-13 修回日期:2013-04-18 出版日期:2013-09-28 发布日期:2013-09-28
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61201253, 61303039, 11226336, 61103210, and 61272514), the Natural Science Foundation of Henan Provincial Education Department, China (Grant No. 12A120003), and the Fundamental Research Funds for the Central Universities, China (Grant No. SWJTU11BR174).

Deterministic assisted clone of an unknown four-particle entangled cluster-type state

Ma Song-Ya (马松雅)^a, Luo Ming-Xing (罗明星)^b, Sun Ying (孙莹)^c

a School of Mathematics and Information Sciences, Henan University, Kaifeng 475004, China;
b School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China;
c Beijing Electronic Science and Technology Institute, Beijing 100070, China

Received:2013-03-13 Revised:2013-04-18 Online:2013-09-28 Published:2013-09-28
Contact: Ma Song-Ya E-mail:masongya0829@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61201253, 61303039, 11226336, 61103210, and 61272514), the Natural Science Foundation of Henan Provincial Education Department, China (Grant No. 12A120003), and the Fundamental Research Funds for the Central Universities, China (Grant No. SWJTU11BR174).

摘要/Abstract

摘要： Two deterministic schemes are proposed to realize the assisted clone of an unknown four-particle entangled cluster-type state. The schemes include two stages. The first stage requires teleportation via maximal entanglement as the quantum channel. In the second stages of the protocols, two novel sets of mutually orthogonal basis vectors are constructed. With the assistance of the preparer through a four-particle or two-step two-particle projective measurement under these bases, the perfect copy of an original state can be produced. Comparing with the previous protocols which produce the unknown state and its orthogonal complement state at the site of the sender, the proposed schemes generate the unknown state deterministically.

关键词: deterministic assisted clone, complete orthogonal basis, teleportation, remote preparation

Abstract: Two deterministic schemes are proposed to realize the assisted clone of an unknown four-particle entangled cluster-type state. The schemes include two stages. The first stage requires teleportation via maximal entanglement as the quantum channel. In the second stages of the protocols, two novel sets of mutually orthogonal basis vectors are constructed. With the assistance of the preparer through a four-particle or two-step two-particle projective measurement under these bases, the perfect copy of an original state can be produced. Comparing with the previous protocols which produce the unknown state and its orthogonal complement state at the site of the sender, the proposed schemes generate the unknown state deterministically.

Key words: deterministic assisted clone, complete orthogonal basis, teleportation, remote preparation

中图分类号: (Quantum communication)

03.67.Hk

03.67.-a (Quantum information) 03.65.-w (Quantum mechanics)

马松雅, 罗明星, 孙莹. Deterministic assisted clone of an unknown four-particle entangled cluster-type state[J]. 中国物理B, 2013, 22(11): 110304-110304.

Ma Song-Ya (马松雅), Luo Ming-Xing (罗明星), Sun Ying (孙莹). Deterministic assisted clone of an unknown four-particle entangled cluster-type state[J]. Chin. Phys. B, 2013, 22(11): 110304-110304.

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Deterministic assisted clone of an unknown four-particle entangled cluster-type state

Deterministic assisted clone of an unknown four-particle entangled cluster-type state

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