多粒子高维受控序重排加密协议
Multi-particle and High-dimension Controlled Order Rearrangement Encryption Protocols
摘要：
基于EPR对量子密钥分发的受控有序重排加密（CORE）[Fu.G.Deng and G. L. Long Phys.Rev.A68（2003）042315]，提出了$N$量子比特和$N$量子比特的广义受控有序重排加密（GCORE）协议，具体给出了3-qubit、2-qutrit最大纠缠基态的情形.我们进一步指出，我们的协议将变得更安全的粒子数和维数的增加。此外，我们使用量子协变克隆机对该协议进行了安全性分析。虽然广义方案的应用还需要进一步研究，但GCORE具有容量大、效率高等特点。
英文摘要：
Based on the controlled order rearrange encryption (CORE) for quantum key distribution using EPR pairs[Fu.G.Deng and G.L.Long Phys.Rev.A68 (2003) 042315], we propose the generalized controlled order rearrangement encryption (GCORE) protocols of $N$ qubits and $N$ qutrits, concretely display them in the cases using 3-qubit, 2-qutrit maximally entangled basis states. We further indicate that our protocols will become safer with the increase of number of particles and dimensions. Moreover, we carry out the security analysis using quantum covariant cloning machine for the protocol using qutrits. Although the applications of the generalized scheme need to be further studied, the GCORE has many distinct features such as great capacity and high efficiency.
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