Realization of coherent matter wave fiber with time orbiting optical potential

虽然光子之间不相互作用，很难局部化，但它们是量子信息最快、最强大的载体。相比之下，原子可以相互作用，甚至可以通过传统的激光冷却技术来阻止，但它们不能成为信息的快速载体。如果光的量子信息能够相干地传递给原子，我们就可以抵消这两种系统的缺点，只利用它们的优点。研究结果如下：(1)无EIT的超慢光传输的理论建议，(2)无EIT的超慢光传输的实验实现，(3)轨道角动量从原子系统到光场的相干转移，(4)超慢光传输引起的巨型非线性效应的理论建议，(5)利用光的存储操纵光的轨道角动量和量子相位印迹方法，(6)观察超慢和存储光脉冲的光子统计。

While photons do not interact with each other and are difficult to localize, they are the fastest and the most robust carriers of quantum information. In contrast, atoms can interact with each other and can even be stopped by conventional laser cooling techniques, but they cannot be the fast carrier of the information. We can cancel the disadvantages of both systems and utilize only advantages if quantum information of lights can be coherently transferred to the atoms. The results of the research are as follows.(1) Theoretical proposal of ultra slow light propagation without EIT,(2) Experimental realization of ultra slow light propagation without EIT,(3) Coherent transfer of orbital angular momentum from an atomic system to light field,(4) Theoretical proposal of giant non-linear effect induced by ultra slow light propagation,(5) Manipulating orbital angular momentum of light with storage of light and quantum phase imprinting methods,(6) Observation of photon statistics for ultraslow and stored light pulses.