Observation of frequency-uncorrelated photon pairs generated by counter-propagating spontaneous parametric down-conversion

by Yi-Chen Liu, Dong-Jie Guo, Kun-Qian Ren, Ran Yang, Minghao Shang, Wei Zhou, Xinhui Li, Chang-Wei Sun, Ping Xu, Zhenda Xie, Yan-Xiao Gong, Shi-Ning Zhu
Published 2021