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arXiv 1409.3786quant-phcond-mat.mes-hall
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使用修饰自旋态保护固态自旋不受退相干影响

Protecting a solid-state spin from decoherence using dressed spin states

D. Andrew Golter, Thomas K. Baldwin, Hailin Wang

摘要:

修饰自旋态,一种与连续辐射场耦合的自旋,可以从根本上改变自旋对磁涨落的响应。利用修饰自旋态,我们能够保护金刚石中的电子自旋不受退相干的影响。在1 MHz附近的耦合速率下,用共振微波装扮自旋导致自旋跃迁的线宽减少50倍,受限于渡越时间加宽。利用光学相干布居俘获过程研究了自旋退相干和修饰态的能级结构。与动态退耦合(其中浴的影响在特定时间被平均化)相比,修饰状态提供了持续的退相干保护。

英文摘要:

Dressed spin states, a spin coupling to continuous radiation fields, can fundamentally change how a spin responds to magnetic fluctuations. Using dressed spin states, we were able to protect an electron spin in diamond from decoherence. Dressing a spin with resonant microwaves at a coupling rate near 1 MHz leads to a 50 times reduction in the linewidth of the spin transition, limited by transit-time broadening. The spin decoherence and the energy level structure of the dressed states were probed with optical coherent-population-trapping processes. Compared with dynamical decoupling, where effects of the bath are averaged out at specific times, the dressed state provides a continuous protection from decoherence.

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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