振动RF SQUID中的退相干和复相干
Decoherence and Recoherence in a Vibrating RF SQUID
摘要：
我们研究的RF SQUID，其中一部分的环是一个自由悬挂的梁，允许机械振荡。RF SQUID和机械谐振器之间的耦合源于穿过环路的总磁通量对谐振器的位移的依赖性。后者的运动会影响RF SQUID的两个最低能量状态之间的拉比振荡的可见性。我们讨论了在这样的系统中实验观测退相干和重相干，即可见度的衰减和上升的可行性。
英文摘要：
We study an RF SQUID, in which a section of the loop is a freely suspended beam that is allowed to oscillate mechanically. The coupling between the RF SQUID and the mechanical resonator originates from the dependence of the total magnetic flux threading the loop on the displacement of the resonator. Motion of the latter affects the visibility of Rabi oscillations between the two lowest energy states of the RF SQUID. We address the feasibility of experimental observation of decoherence and recoherence, namely decay and rise of the visibility, in such a system.
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