Deterministic Secure Direct Communication by Using Swapping Quantum Entanglement and Local Unitary Operations

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2005,（1）
• 页码范围: 18-21
• 页数: 4页
• 语种: 英文

摘要

A deterministic direct quantum communication protocol is proposed by using swapping quantum entanglement and local unitary operations. The present protocol is secure for the proof of the security of the present scheme,the same as that in the two-step protocol [Phys. Rev. A 68 (2003)042317]. Additionally, the advantages anddisadvantages of the present protocol is also discussed.