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arXiv 1202.3057quant-phcond-mat.quant-gas
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双玻色-爱因斯坦凝聚体上的磁振子量子比特

Magnon qubit on double Bose-Einstein condensate

S . N. Andrianov, S. A. Moiseev

AI总结:

本文提出在双铁磁样品BEC耦合构型中实现磁振子量子比特,通过量子同步条件得到类似超导约瑟夫森量子比特的有效哈密顿量,并分析了其相干旋转实现及宏观量子比特优势。

摘要:

我们提出了一种基于两个紧密放置的铁磁样品中玻色-爱因斯坦凝聚体(BEC)耦合构型的磁振子量子比特。我们在双BEC方案中评估了磁振子BEC量子比特的实现,发现了一个量子同步条件,该条件提供了磁振子量子比特的有效哈密顿量。它具有众所周知的超导约瑟夫森量子比特的形式。分析了相干磁振子BEC量子比特旋转的可能性。针对小样品和薄铁磁薄膜考虑了磁振子BEC量子比特的实现。讨论了所提出的宏观量子比特实现的优势。

英文摘要:

We have proposed a magnon qubit based on coupled configuration of Bose-Einstein condensates (BEC) in two ferromagnetic samples placed closely to each other. We have evaluated the magnon BEC qubit realization in the double BEC scheme where we found a quantum synchronism condition providing an effective Hamiltonian of magnon qubit. It has the form of well-known superconducting Josephson qubit. The possibilities for coherent magnon BEC qubit rotation are analyzed. Implementations of the magnon BEC qubit are considered for small samples and thin ferromagnetic films. Advantages of the proposed macroscopic qubit realization 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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