注入两原子的纳米腔与一维耦合谐振腔波导作用下的单光子传输  

Single-photon Transmission in One-dimensional Coupled Resonator Waveguide Interacting with a Nanocavity Contained Two Independent Atoms

作　　者：刘妮[1,2] 胡凯璇 梁九卿 LIU Ni;HU Kaixuan;LIANG Jiuqing(Institute of Theoretical Physics,State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China)

机构地区：[1]山西大学理论物理研究所,量子光学与光量子器件国家重点实验室,极端光学协同创新中心,山西太原030006 [2]山东师范大学光操纵与应用协同创新中心,山东济南250358

出　　处：《山西大学学报（自然科学版）》2023年第4期849-855,共7页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(12147215);山西省“1331工程”重点学科建设计划项目。

摘　　要：基于单原子纳米腔与一维耦合谐振腔波导(一维CRW)的单光子传输结论,我们从理论上探讨了纳米腔内注入无相互作用的两原子时,该纳米腔与一维CRW相互作用的单光子传输特性。基于薛定谔方程,采用离散坐标法我们主要探究了不同原子与纳米腔耦合强度、零级谐振腔与纳米腔耦合强度、原子频率、波导频率、单光子动量分别对单光子传输特性的影响,主要通过透射概率和反射概率来表征。第二原子的注入会促进全透射区域的增加,且在较弱的原子与纳米腔耦合区域就可以实现理想的全透射。该研究结果不仅拓展了光与物质相互作用的研究,而且有助于实现新的光子器件。Based on the conclusion of single photon transmission between the nanocavity with a single atom and a one-dimensional coupled resonator waveguide(one-dimensional CRW),we theoretically investigate the single photon transmission probability of the interaction between the nanocavity and one-dimensional CRW when two atoms without interaction are injected into the nanocavity.Based on the Schr?dinger equation,the discrete coordinates approach has been used to investigate that the coupling strengths and the relative frequencies on the single photon transmission probability.The main variational parameters are the coupling strength between the nanocavity and the atoms,the coupling strength between the 0th resonator and nanocavity,the atomic frequency,and the frequency of waveguide and the single photon momentum.The impact on single photon transmission is mainly characterized by transmission probability and reflection probability.The existence of second atom can increase the perfect transmission region.Meanwhile,the perfect transmission can easily achieve in a weaker coupling strength between the nanocavity and the first atom,which is different from the case of just one atom in the nanocavity.Our results not only develop the interaction between the light and the matter,but also be benefit to realize new photonic devices.

关 键 词：两原子 纳米腔 一维耦合谐振腔波导 单光子输运 

分 类 号：O469[理学—凝聚态物理]