arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv quant-ph/0610103quant-ph
收藏

相移控制增强自旋链中的纠缠转移

Enhancement of entanglement transfer in a spin chain by phase shift-control

K. Maruyama, T. Iitaka, F. Nori

摘要:

我们研究了相移对自旋链中可转移的双自旋纠缠量的影响。我们考虑一个铁磁海森堡/XY自旋链,数值和解析,和两种机制产生的相移,Aharonov-Casher效应和Dzyaloshinskiii-Moriya相互作用。在这两种情况下,最大可达到的纠缠被证明是显着增强,这表明其潜在的有用性在量子信息处理。

英文摘要:

We study the effect of a phase shift on the amount of transferrable two-spin entanglement in a spin chain. We consider a ferromagnetic Heisenberg/XY spin chain, both numerically and analytically, and two mechanisms to generate a phase shift, the Aharonov-Casher effect and the Dzyaloshinskii-Moriya interaction. In both cases, the maximum attainable entanglement is shown to be significantly enhanced, suggesting its potential usefulness in quantum information processing.

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。

↑