We present a theoretical scheme for quantum controlled teleportation, which transmits a Bell state from sender Alice to remote receiver Bob via a seven-qubit entangled state under the control of supervisor Charlie. The Bell state can be transmitted if Alice performs two GHZ-state measurements on her qubits and Charlie carries out a projection measurement on her qubit, respectively. Based on the measurement results of Alice and Charlie, the original quantum state can be reconstructed on Bob’s qubits via performing appropriate unitary operations. Moreover, we take comparisons with the previous schemes in five aspects of transmission qubits number, consumption of quantum resource, consumption of classical resources, success probability and intrinsic efficiency. And we also utilize decoy photons technology to ensure the security of the scheme under three kinds of attacks. We evaluated the scheme, and the results have proven that our proposed scheme has higher success probability, intrinsic efficiency and higher security.

中文翻译：

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使用七量子比特纠缠态量子控制的贝尔态隐形传态

我们提出了一种量子控制隐形传态的理论方案，它在监督者 Charlie 的控制下，通过一个七量子比特纠缠态将贝尔态从发送者 Alice 传输到远程接收者 Bob。如果 Alice 对她的量子位执行两次 GHZ 状态测量并且 Charlie 分别对她的量子位执行投影测量，则可以传输 Bell 状态。根据 Alice 和 Charlie 的测量结果，可以通过执行适当的幺正运算在 Bob 的量子比特上重建原始量子态。此外，我们在传输量子比特数、量子资源消耗、经典资源消耗、成功概率和内在效率五个方面与之前的方案进行了比较。并且我们还利用诱饵光子技术来保证方案在三种攻击下的安全性。我们对该方案进行了评估，结果证明我们提出的方案具有更高的成功概率、内在效率和更高的安全性。