发表机构
Purdue University（普渡大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
基于宏观量子电动力学和一阶电磁格林函数，为开放光子系统发展量子输入-输出理论，包含端口散射矩阵与朗之万噪声，并用于计算纳米光子腔和逆设计耦合器的发射体修正透射率。
AI 中文摘要
我们基于宏观量子电动力学，利用一阶电磁格林函数，为开放光子系统发展了一种量子输入-输出理论。量子场通过波导端口进入和离开光子系统，而电磁格林函数将场传播通过光子系统的任意内部区域，该区域可能具有色散和吸收特性。所得关系包含一个端口到端口的散射矩阵以及来自材料吸收的朗之万噪声贡献，二者共同保持玻色子输出对易关系。对于嵌入的发射体，低饱和与单激发散射响应由连接端口和发射体的格林函数决定，同时保留光子环境的非马尔可夫性。利用时域有限差分模拟，我们计算了纳米光子腔和逆设计耦合器中发射体修正的透射率，为从计算电磁响应到量子输入-输出模型提供了直接途径。
英文摘要
We develop a quantum input-output theory for open photonic systems based on macroscopic quantum electrodynamics using the first-order electromagnetic Green's function. Quantum fields enter and leave the photonic system through waveguide ports, while the electromagnetic Green's function propagates the fields through the arbitrary interior of the photonic system, which may be dispersive and absorbing. The resulting relation contains a port-to-port scattering matrix and a Langevin-noise contribution from material absorption that together preserve the bosonic output commutation relations. For embedded emitters, the low-saturation and single-excitation scattering response is determined by Green's functions connecting the ports and emitters while retaining the non-Markovianity of the photonic environment. Using finite-difference time-domain simulation, we calculate the emitter-modified transmission for a nanophotonic cavity and inverse-designed coupler, providing a direct route from computed electromagnetic response to a quantum input-output model.
