标题： 量子表面效应对耦合到表面等离激元极化子的量子发射器的影响 显示英文标题

标题： Quantum surface effects on quantum emitters coupled to surface plasmon polariton

摘要： 作为一种探索强量子光-物质相互作用的理想平台，表面等离激元极化子（SPP）在量子技术中激发了许多应用。最近发现，金属的量子表面效应（QSEs），包括非局域光学响应、电子溢出和兰道阻尼，为SPP增加了额外的损耗源。这种SPP的恶化损耗严重阻碍了其远距离量子互连的实现。在此，我们研究了在平面金属-电介质纳米结构中存在QSEs的情况下，量子发射器（QEs）与共同SPP的非马尔可夫动力学。发现了一种克服由损耗性SPP引起的QEs耗散的机制。我们发现，只要由QSEs有利的QE-SPP束缚态形成，就会产生无耗散的QEs纠缠。这导致即使经历金属吸收，分离的QEs也能通过SPP介导的类似拉比振荡的方式相干相关。我们对QSEs的研究更新了我们对吸收介质中光-物质相互作用的理解，并为将SPP应用于量子互连铺平了道路。 显示英文摘要

摘要： As an ideal platform to explore strong quantized light-matter interactions, surface plasmon polariton (SPP) has inspired many applications in quantum technologies. It was recently found that quantum surface effects (QSEs) of the metal, including nonlocal optical response, electron spill-out, and Landau damping, contribute additional loss sources to the SPP. Such a deteriorated loss of the SPP severely hinders its realization of long-distance quantum interconnect. Here, we investigate the non-Markovian dynamics of quantum emitters (QEs) coupled to a common SPP in the presence of the QSEs in a planar metal-dielectric nanostructure. A mechanism to overcome the dissipation of the QEs caused by the lossy SPP is discovered. We find that, as long as the QE-SPP bound states favored by the QSEs are formed, a dissipationless entanglement among the QEs is created. It leads to that the separated QEs are coherently correlated in a manner of the Rabi-like oscillation mediated by the SPP even experiencing the metal absorption. Our study on the QSEs refreshes our understanding of the light-matter interactions in the absorptive medium and paves the way for applying the SPP in quantum interconnect.