Biphoton Waveforms of Photon Pair from Velocity-Selective Atoms in a Doppler-Broadened Atomic Ensemble

Abstract

Biphoton Waveforms

In article number 2400147, Han Seb Moon and co-workers demonstrate high-performance telecom-wavelength biphoton generation using a hot ⁸⁷Rb vapor cell. This study unveils, for the first time, a beat phenomenon in the signal photon’s auto-correlation function, arising from velocity-selective atomic classes in warm vapor. These findings advance practical telecom-band quantum light sources, offering new insights for quantum technologies.