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arXiv 1109.1003quant-phcond-mat.mes-hall
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使用偶极晶体的长程量子门

Long-range quantum gates using dipolar crystals

Hendrik Weimer, Norman Y. Yao, Chris R. Laumann, Mikhail D. Lukin

摘要:

我们建议使用偶极自旋链,使远程量子比特之间的远程量子逻辑。在我们的方法中,远程量子比特之间的有效相互作用是通过顺磁到晶体相变的偶极链的基态来实现的。我们证明了所提出的量子门是特别强大的对无序和导出的标度关系,表明高保真量子比特耦合是可能的存在现实的缺陷。讨论了从超冷里德伯原子到金刚石中氮空位缺陷中心阵列等系统中可能的实验实现。

英文摘要:

We propose the use of dipolar spin chains to enable long-range quantum logic between distant qubits. In our approach, an effective interaction between remote qubits is achieved by adiabatically following the ground state of the dipolar chain across the paramagnet to crystal phase transition. We demonstrate that the proposed quantum gate is particularly robust against disorder and derive scaling relations, showing that high-fidelity qubit coupling is possible in the presence of realistic imperfections. Possible experimental implementations in systems ranging from ultracold Rydberg atoms to arrays of Nitrogen-Vacancy defect centers in diamond are discussed.

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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