 Quantum erasure experiments have been used to explore the relationship between which path information and wave particle duality. In this study, researchers used frequency entangled photons to create two simultaneous photons, one of which was delayed before being detected. The delayed photons which time information determined whether it would behave like a wave or a particle. This experiment demonstrated that the which time information can be used to determine the behavior of the photon, thus providing evidence for the role of the temporal degree in quantum like complementarity and photon interference. This article was authored by Ling Hong, Yuan Yuan Chen, and Li Xiang Chen.