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arXiv 1906.11263physics.opticsquant-ph
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拓扑谐振腔手性量子光学

Chiral quantum optics using a topological resonator

Sabyasachi Barik, Aziz Karasahin, Sunil Mittal, Edo Waks, Mohammad Hafezi

摘要:

拓扑光子结构表现出对无序和急剧弯曲具有鲁棒性的手性边缘状态。当耦合到量子发射器时,这些边缘状态产生定向光发射,从而能够前所未有地控制纳米光子器件中光与物质之间的相互作用。虽然一维拓扑以及传统波导中的定向光发射先前已经被证明,但将这些概念扩展到增强光-物质耦合的谐振器结构仍然具有挑战性。在这里,我们展示了在拓扑谐振器中的手征轻物质相互作用。我们采用谷霍尔拓扑边缘状态,实现在两个拓扑不同的区域的界面处的螺旋谐振器。这样的螺旋谐振器具有两个相反偏振的反向传播模式。我们示出了手性耦合的谐振器的量子发射器,导致在Purcell增强3.4由于谐振耦合。这种手征共振器可以设计用于量子信息处理的复杂纳米光子电路,并研究新的量子多体动力学。

英文摘要:

Topological photonic structures exhibit chiral edge states that are robust to disorder and sharp bends. When coupled to quantum emitters, these edge states generate directional light emission that enables unprecedented control of interactions between light and matter in a nanophotonic device. While directional light emission in one-dimensional topological, as well as conventional, waveguides has been previously demonstrated, the extension of these concepts to resonator structures that enhance light-matter coupling remains challenging. Here we demonstrate chiral lightmatter interactions in a topological resonator. We employ valley-Hall topological edge states to realize a helical resonator at the interface of two topologically distinct regions. Such a helical resonator has two counter-propagating modes with opposite polarizations. We show chiral coupling of the resonator to a quantum emitter resulting in a Purcell enhancement of 3.4 due to resonant coupling. Such chiral resonators could enable designing complex nanophotonic circuits for quantum information processing, and studying novel quantum many-body dynamics.

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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