Four-party quantum operation sharing with 7-qubit mixing state
Abstract
<p indent="0mm">In this paper, a four-party quantum operation protocol is proposed using a 7-qubit mixing state, which originates from a 7-qubit Brown state due to a 2-qubit confusion. The security, determinacy, and sharer symmetry, as well as the experiment feasibility of the present protocol, are analyzed and discussed. Notably, the protocol is secure, a quantum operation can be shared by the sharer entity so that it can be successfully executed on a remote target qubit on one sharer’s side, two of the three sharers are symmetric as the reconstruction of the conceivable state is concerned, and the protocol is experimentally feasible in terms of the current technique. The present protocol is concisely compared with four 4-party quantum operation protocols, which are different from the employed quantum channel or the qubit distribution. The present protocol is the first to utilize the entangled mixing state as the quantum channel.</p>
