Fig. 1. Multimode quantum storage of single photons: (a) The histogram of single photon storage in one temporal mode for 40 ns; (b) the histogram of single photon storage in 20 temporal modes for 100 ns; (c) the histogram of single photon storage in 100 temporal modes for 500 ns; (d) the enlarge of the rectangle regions in panel (c) ^[11]. 确定性真光子的多模式存储　(a) 1个时间模式存储40 ns的时间谱; (b) 20个时间模式存储100 ns的时间谱; (c) 100个时间模式存储500 ns的时间谱; (d) 图(c)中方框部分的放大图 ^[11]

Fig. 2. The exploration of the multimode capacity in the spatial domain of the quantum memory: (a) The setup is used for exploration of the multimode capacity of the memory; (b) graphical representation of the real part of the reconstructed process matrix in three dimensions; (c) the memory performance for quantum superposition states ^[13]. 存储器的模式容量分析　(a) 研究多模式存储容量的实验装置; (b) 三维空间的OAM态通过量子过程层析重构密度矩阵 的实部; (c) 高维叠加态 的存储结果 ^[13]

Fig. 3. Multiplexed storage in multiple-degree-of-freedom at single photon level: (a) The double AFC structure (red) in the memory crystal and the double filter structure (black) in the filter crystal; (b) three independent spatial modes carrying different OAM states are employed for spatial multiplexing; (c) a demonstration of temporal, spectral and spatial multiplexed storage for single-photon level input ^[14]. 单光子水平的多自由度复用的自旋波存储　(a) 在存储晶体的非均匀展宽上制作的两个间距为80 MHz的AFC (红色)和滤波晶体的吸收线(黑色); (b) 3个独立的空间模式的输入; (c) 时间、频率和空间自由度同时复用的自旋波存储 ^[14]

Fig. 4. (a), (b) Multiplexed storage and (c), (d) quantum mode conversion for spatial encoded qutrit state using four temporal and spectral channels^[14]. 将时间和频率自由度作为“信道”, 将空间自由度使用qutrit态编码的多路复用存储(a), (b)和量子模式转换(c), (d)^[14]

Fig. 5. Arbitrary temporal and spectral manipulations in real time: (a) The OAM qutrit state is encoded on the and modes; (b) the OAM qutrit state is encoded on the and modes^[14]. 时间和频率模式的实时任意操作　(a) 轨道角动量的qutrit态 加载在 和 模式上; 红色代表频率为 的光子, 蓝色代表频率为 的光子; (b) 轨道角动量的qutrit态 加载在 和 模式上^[14]