Faithful quantum broadcast beyond the no-go theorem |
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Authors: | Ming-Xing Luo Yun Deng Xiu-Bo Chen Yi-Xian Yang Hong-Heng Li |
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Affiliation: | 1. School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China 2. Institute of Computer Science, Sichuan University of Science and Engineering, Zigong, 643000, China 3. Information Security Center, State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China 4. College of Mathematics and Information Science, Leshan Normal University, Leshan, 614000, China
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Abstract: | The main superiority of the quantum remote preparation over quantum teleportation lies the classical resource saving. This situation may be changed from the following constructions. Our purpose in this paper is to find some special differences between these two quantum tasks besides the classical resource costs. Some novel schemes show that the first one is useful to simultaneously broadcast arbitrary quantum states, while the second one cannot because of the quantum no-cloning theorem. Moreover, these broadcast schemes may be adapted to satisfying the different receivers’ requirements or distributing the classical information, which are important in various quantum applications such as the quantum secret distribution or the quantum network communication. |
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