High-capacity Deterministic Secure Four-qubit <Emphasis Type="Italic">W</Emphasis> State Protocol for Quantum Communication Based on Order Rearrangement of Particle Pairs |
| |
Authors: | Hao Yuan Jun Song Jun Zhou Gang Zhang Xiang-fei Wei |
| |
Institution: | 1.Department of Mathematics and Physics,West Anhui University,Lu’an,China;2.Department of Material Science and Engineering,University of Science and Technology of China,Hefei,China |
| |
Abstract: | A novel high-capacity protocol for deterministic secure quantum communication with four-qubit symmetric W state is proposed. In the presented protocol, the secret messages can be encoded on the four-qubit symmetric W states by employing four two-particle unitary operations and directly decoded by utilizing the corresponding measurements
in Bell basis or single particle basis. It has a high capacity as each W state can carry two bits of secret information, and has a high intrinsic efficiency because almost all the instances are
useful. The security of this communication can be ensured by the decoy photon checking technique and the order rearrangement
of particle pairs technique. Furthermore, this protocol is feasible with present-day technique. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|