论文标题
在电信波长处的1650个单光子模式的量子存储
Quantum storage of 1650 modes of single photons at telecom wavelength
论文作者
论文摘要
为了促进量子网络的全部潜力，应该能够以可观的速率在长距离上分配量子资源。结果，网络中的所有组件都需要具有操纵光子量子状态的大型多模能力。为此，多模光子量子内存，尤其是在电信波长下运行的一个记忆，仍然是一个关键挑战。在这里，我们演示了1532 nm处的光谱多路复用量子记忆。电信带预示的单光子的多模量子存储是通过在10米长的低温冷却的Erbium掺杂二氧化硅纤维中使用原子频率梳子方案来实现的。多路复用包含五个光谱通道 - 每个光谱通道，每个光谱通道宽 - 在这些光谱通道中，每个光谱通道最多可达330个时间模式，从而同时存储了1650个单个光子模式。我们的演示为高速量子网络打开了大门，这对于将来的量子互联网至关重要。
To advance the full potential of quantum networks one should be able to distribute quantum resources over long distances at appreciable rates. As a consequence, all components in the networks need to have large multimode capacity to manipulate photonic quantum states. Towards this end, a multimode photonic quantum memory, especially one operating at telecom wavelength, remains a key challenge. Here we demonstrate a spectro-temporally multiplexed quantum memory at 1532 nm. Multimode quantum storage of telecom-band heralded single photons is realized by employing the atomic frequency comb protocol in a 10-m-long cryogenically cooled erbium doped silica fibre. The multiplexing encompasses five spectral channels - each 10 GHz wide - and in each of these up to 330 temporal modes, resulting in the simultaneous storage of 1650 modes of single photons. Our demonstrations open doors for high-rate quantum networks, which are essential for future quantum internet.
