In a device comprising two double quantum dots separated by a 250-μm-long superconducting resonator, virtual photons in the resonator are shown to mediate the coupling of electron spins between the quantum dots. When the spin–spin coupling is activated for a controlled duration, oscillations between the spins are observed.

中文翻译：

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通过虚拟光子耦合的遥距离自旋量子比特之间的时域振荡


在一个由两个双量子点组成的器件中，由一个 250 μm 长的超导谐振器隔开，谐振器中的虚拟光子被证明可以介导量子点之间电子自旋的耦合。当自旋-自旋耦合在受控持续时间内被激活时，会观察到自旋之间的振荡。