Probabilistic Three-Party Sharing of Operation on a Remote Qubit

• Main Authors: Chuanmei Xie, Yimin Liu, Hang Xing, Zhanjun Zhang
• Format: Article
• Language: English
• Published: MDPI AG 2015-02-01
• Series: Entropy
• Subjects: single-qubit operation sharing; non-maximally entangled state; probability; symmetry; security; experimental feasibility
• Online Access: http://www.mdpi.com/1099-4300/17/2/841

A probabilistic tripartite single-qubit operation sharing scheme is put forward by utilizing a two-qubit and a three-qubit non-maximally entangled state as quantum channels. Some specific comparisons between our scheme and another probabilistic scheme are made. It is found that, if the product of the two minimal coefficients characterizing channel entanglements is greater than 3/16, our scheme is more superior than the other one. Nonetheless, the price is that more classical and quantum resources are consumed, and the operation difficulty is rather increased. Moreover, some important features of the scheme, such as its security, probability and sharer symmetry, are revealed through concrete discussions. Additionally, the experimental feasibility of our scheme is analyzed and subsequently confirmed according to the current experimental techniques.