Coupling mechanical motion of a single atom to a micromechanical cantilever
Coupling mechanical motion of a single atom to a micromechanical cantilever
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将单个原子的机械运动耦合到微机械悬臂梁
DOI:
10.1364/oe.25.032931
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发表时间:
2017-12
期刊:
影响因子:
3.8
通讯作者:
Yueheng Lan 兰岳恒
中科院分区:
文献类型:
--
作者:
Wenjie Nie 聂文杰;Aixi Chen 陈爱喜;Yueheng Lan 兰岳恒
We design and analyze a hybrid optomechanical setup to achieve an effective coupling between the mechanical motions of a micromechanical cantilever and a single atom trapped inside a cavity, which is mediated by a direct interaction between the micromechanical cantilever and the atomic internal state via the quantum vacuum effect. Moreover, the optomechanical coupling between the mechanical motion of the cantilever and the cavity field can be mediated by the interaction with the atom. Their couplings are demonstrated in detail by analyzing the normal-mode splitting of the mechanical motion and the optical response of the hybrid optomechanical system. It is found that double optomechanically-induced transparency can be observed in the output probe field in the presence of the mediated coupling. In particular, both the width of the splitting peaks and the separation between the two absorption dips increase with the increasing strength of the vacuum coupling and with the decreasing trapped position of the atom. These characteristics can be used to study the strong coupling between a single atom and a massive micromechanical cantilever.
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