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arXiv 1901.02899quant-phcond-mat.mes-hallphysics.optics
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纳米光子网络中光-物质相互作用的量子声光控制

Quantum acousto-optic control of light-matter interactions in nanophotonic networks

G. Calajo, M. J. A. Schuetz, H. Pichler, M. D. Lukin, P. Schneeweiss, J. Volz, P. Rabl

摘要:

我们分析了在传播声波的存在下,原子或类原子发射器与纳米光子波导的耦合。具体来说,我们表明,强折射率调制引起的这种波可以大大修改有效的光子态密度,从而影响的强度,方向性,以及光子发射和吸收过程的整体特征。这些效应使得能够对波导结构中的光-物质相互作用进行完全的动态控制,即使在二维系统中,波导结构也可以用于沿着选定的方向并且以非常高保真度有效地交换单个光子。这种量子声光控制为各种量子网络应用提供了通用工具,从经由定向发射器-发射器相互作用的纠缠分布到经由声学传送带的单个光子量子态的路由。

英文摘要:

We analyze the coupling of atoms or atom-like emitters to nanophotonic waveguides in the presence of propagating acoustic waves. Specifically, we show that strong index modulations induced by such waves can drastically modify the effective photonic density of states and thereby influence the strength, the directionality, as well as the overall characteristics of photon emission and absorption processes. These effects enable a complete dynamical control of light-matter interactions in waveguide structures, which even in a two dimensional system can be used to efficiently exchange individual photons along selected directions and with a very high fidelity. Such a quantum acousto-optical control provides a versatile tool for various quantum networking applications ranging from the distribution of entanglement via directional emitter-emitter interactions to the routing of individual photonic quantum states via acoustic conveyor belts.

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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