Scheme for realizing assisted cloning of an unknown two-atom entangled state via cavity QED

• 来源期刊: 中国物理B（英文版）
• 关键词: quantum cloning two-atom entangled state cavity QED
• 年，卷（期）: 2008,（2）
• 页码范围: 411-414
• 页数: 4页
• 语种: 英文

摘要

This paper proposes a scheme where one can realize quantum cloning of an unknown two-atom entangled state with assistance of a state preparer in cavity QED.The first stage of the scheme requires usual teleportation.In the second stage of the scheme,with the assistance of the preparer,the perfect copies of an unknown atomic entangled state can be produced.