发表机构
Massachusetts Institute of Technology; Harvard University; Columbia University; University of South Florida(麻省理工学院; 哈佛大学; 哥伦比亚大学; 南佛罗里达大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该研究针对耦合半波导的发射体阵列,通过对各发射体施加最优频移稳定暗态,可在超导量子比特平台实现,为量子信息存储等开辟新途径。
AI 中文摘要
量子发射体的辐射特性受其电磁环境的深刻影响。当耦合到一端由反射镜终止的波导时,相距较远的发射体通过虚光子交换产生强相互作用,形成具有增强或抑制衰减率的集体超辐射和亚辐射态。我们证明,对每个发射体施加最优频移,可在小系综中形成完美的单激发暗态(即衰减率为零的态)和近乎完美的多激发暗态。这些集体态可通过沿波导传播的经典驱动场或少光子脉冲以高保真度确定性制备。这些结果可在超导量子比特平台中轻松实现,为量子信息存储、组网及光控制开辟新途径。
英文摘要
The radiative properties of quantum emitters are profoundly influenced by their electromagnetic environment. When coupled to a waveguide terminated at one end by a mirror, distant emitters interact strongly via virtual photon exchange, leading to collective superradiant and subradiant states with enhanced or suppressed decay rates. We demonstrate that applying optimal frequency shifts to each emitter enables the formation of perfect single-excitation dark states (i.e. states with zero decay rate) and near-perfect multi-excitation dark states in small ensembles. These collective states can be deterministically prepared with high fidelity using classical driving fields or few-photon pulses propagating along the waveguide. These results, readily implementable in superconducting qubit platforms, open new avenues for quantum information storage, networking and control of light.