Kai-Chi Change, Xiang Cheng, M. Sarihan, Abhinav Kumar, Y. Lee, Tian Zhong, Y. Gong, Zhenda Xie, J. Shapiro, F. Wong, C. Wong
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High-Dimensional Time-Frequency Entanglement and Schmidt Number Witnesses using a Biphoton Frequency Comb
We demonstrated high-dimensional time-frequency entanglement with a mode-locked biphoton frequency comb. Hong-Ou-Mandel interference and joint spectral intensity measurements are performed, and we estimated Hilbert space dimensionality of at least 3481 via Schmidt mode decompositions.