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arXiv 1106.0507quant-phcond-mat.mtrl-sci
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与三维微波腔强耦合的电子自旋系综

Electron spin ensemble strongly coupled to a three-dimensional microwave cavity

Eisuke Abe, Hua Wu, Arzhang Ardavan, John J. L. Morton

摘要:

我们证明了反射几何中电子自旋系综与三维腔之间的强耦合。我们还发现,在集体耦合强度$g_c$小于自旋线宽$γ_s$或腔线宽的条件下,可以观察到腔/自旋谱中的反交叉.我们确定$g_c$与$γ_s$的比率($g_c/γ_s >$ 0.64)作为观察腔频率分裂的条件。最后,我们确认$g_c$与$\sqrt{N}$成比例,其中$N$是极化自旋的数量。

英文摘要:

We demonstrate the strong coupling between an electron spin ensemble and a three-dimensional cavity in a reflection geometry. We also find that an anticrossing in the cavity/spin spectrum can be observed under conditions that the collective coupling strength $g_c$ is smaller than the spin linewidth $γ_s$ or the cavity linewidth. We identify a ratio of $g_c$ to $γ_s$ ($g_c/γ_s >$ 0.64) as a condition to observe a splitting in the cavity frequency. Finally, we confirm that $g_c$ scales with $\sqrt{N}$, where $N$ is the number of polarized spins.

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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