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arXiv quant-ph/0207043quant-ph
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非局域量子门:腔量子电动力学实现

Non-Local Quantum Gates: a Cavity-Quantum-Electro-Dynamics implementation

M. Paternostro, M. S. Kim, G. M. Palma

摘要:

与大型量子寄存器管理相关的问题可以在分布式量子计算的背景下处理:通过执行局部酉变换和交换经典通信来实现空间分离的局部处理器之间的酉非局部变换。在本文中,我们提出了一个通用的非局域量子门,如受控$\gate{NOT}$($\cnot$)和受控量子相位门($\gate{CQPG}$)的实现方案。我们所选择的物理实现系统是由两个空间分离的微波腔和两个囚禁的里德伯原子形成的腔量子电动力学(CQED)系统。我们描述了实现执行特定非本地操作所需的每个步骤所需遵循的程序。

英文摘要:

The problems related to the management of large quantum registers could be handled in the context of distributed quantum computation: unitary non-local transformations among spatially separated local processors are realized performing local unitary transformations and exchanging classical communication. In this paper, we propose a scheme for the implementation of universal non-local quantum gates such as a controlled-$\gate{NOT}$ ($\cnot$) and a controlled-quantum phase gate ($\gate{CQPG}$). The system we have chosen for their physical implementation is a Cavity-Quantum-Electro-Dynamics (CQED) system formed by two spatially separated microwave cavities and two trapped Rydberg atoms. We describe the procedures to follow for the realization of each step necessary to perform a specific non-local operation.

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。

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