This work is supported by the National Natural Science Foundation of China (Grant Nos. 12274164 and 61875067).
机构署名：
本校为第一且通讯机构
院系归属：
物理科学与技术学院
摘要：
We present a spin two-axis-twisting mechanism via coherent population trapping (CPT) based atom–photon interactions. CPT happens and the atoms are trapped in the dark state (coherent superposition of two ground states) when the ground states are resonantly coupled to a common excited state. Close to CPT, the atoms behave as two dark-state based spins, which interact with the common cavity vacuum fields. The otherwise nonexistent interaction is created between them and is identified to be responsible for the two-axis-twisting of the ground stat...
