多比特GHZ纠缠态的确定性转移及不同腔间的量子秘密共享
Deterministic transfer of multiqubit GHZ entangled states and quantum secret sharing between different cavities
摘要：
提出了一种将Greenberger-Horne-Zeilinger（GHZ）纠缠态从一个腔中的$n$量子比特转移到另一个腔中的另一个$n$量子比特的方法.结果表明，具有任意纠缠度的$n$ -量子比特GHZ态$α\left\vert 00...0\right\rangle +β\left\vert 11...1\right\rangle $可以确定性地转移. GHZ态转移和操作时间都不依赖于量子位数，也不需要测量。这个建议是相当普遍的，可以应用于完成广泛的物理量子位相同的任务。此外，注意，$n$ -量子位GHZ状态$α\left\vert 00...0\right\rangle +β\left\vert 11...1\right\rangle $是用于编码单量子位任意纯状态$α\left\vert 0\right\rangle +β\left\vert 1\right\rangle $的量子秘密共享码。因此，这项工作也提供了一种方法来转移量子秘密共享从$n$量子比特在一个腔中的另一个$n$量子比特在另一个腔。
英文摘要：
We propose a way for transferring Greenberger-Horne-Zeilinger (GHZ) entangled states from $n$ qubits in one cavity onto another $n$ qubits in the other cavity. It is shown that $n$-qubit GHZ states $α\left\vert 00...0\right\rangle +β\left\vert 11...1\right\rangle $ with arbitrary degree of entanglement can be transferred deterministically. Both of the GHZ state transfer and the operation time are not dependent on the number of qubits, and there is no need of measurement. This proposal is quite general and can be applied to accomplish the same task for a wide range of physical qubits. Furthermore, note that the $n$-qubit GHZ state $α\left\vert 00...0\right\rangle +β\left\vert 11...1\right\rangle $ is a quantum-secret-sharing code for encoding a single-qubit arbitrary pure state $α\left\vert 0\right\rangle +β\left\vert 1\right\rangle $. Thus, this work also provides a way to transfer quantum secret sharing from $n$ qubits in one cavity to another $n$ qubits in the other cavity.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
