论文标题
完整的频率铃基础合成器
Complete frequency-bin Bell basis synthesizer
论文作者
论文摘要
我们通过连续泵送单个和双光谱线的自发参数下调，在单个多功能设置中报告了所有四个频率键铃状的实验生成。我们的计划利用强度调制来控制泵配置，并仅使用现成的电信设备提供任何所需的钟形状态的交钥匙生成。我们采用贝叶斯推断来重建产生的铃铛状态的密度矩阵，发现所有情况下的保真度$ \ geq $ 97％。此外，我们证明了频率键状态对共同模式和差分模式的时间延迟的敏感性，该光子由包含状态$ \ unicode {x2013} $所包含的光子延迟，从我们的全钟基础基础合成器启用了增强分辨率或非局部感应的潜力。
We report the experimental generation of all four frequency-bin Bell states in a single versatile setup via successive pumping of spontaneous parametric downconversion with single and dual spectral lines. Our scheme utilizes intensity modulation to control the pump configuration and offers turn-key generation of any desired Bell state using only off-the-shelf telecommunication equipment. We employ Bayesian inference to reconstruct the density matrices of the generated Bell states, finding fidelities $\geq$ 97% for all cases. Additionally, we demonstrate the sensitivity of the frequency-bin Bell states to common-mode and differential-mode temporal delays traversed by the photons comprising the state$\unicode{x2013}$presenting the potential for either enhanced resolution or nonlocal sensing enabled by our complete Bell basis synthesizer.
