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Research PapersNo Access

GENERALIZED QUANTUM TWO-QUBIT STATE SHARING VIA POSITIVE OPERATOR-VALUED MEASURE

Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China, School of Physics & Material Science, Anhui University, Hefei 230039, China

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and

XING-QIANG YANG

College of Physics & Electronic Engineering, Nanyang Normal University, Nanyang Henan 473061, China

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https://doi.org/10.1142/S0219749911007630Cited by:5 (Source: Crossref)

Abstract

By using a proper positive operator-valued measure (POVM), we present a new scheme for probabilistically implementing quantum state sharing of an arbitrary unknown two-qubit state with two non-maximally entangled three-qubit states. In this paper, the sender Alice averagely partitions its unknown original state with two Bell-state measurements and publishes her measurement results via a classical channel. Then by performing a proper POVM, it is shown that either of the two agents Bob or Charlie can recover the original state in a probabilistic manner provided that he/she gets another one's help. Lastly, we concisely generalize the tripartite scheme to a multi-party case.

Keywords:

PACS: 03.67.Mn, 03.67.Hk, 03.67.-a

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Vol. 09, No. 01

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Received 11 October 2010

Keywords