Abstract
Manipulation of the temporal waveform of single photons not only provides a powerful benchmark tool for fundamental research in quantum physics, but also plays a critical role in quantum information processing. The generation of narrowband paired photons makes it possible for manipulating the temporal waveform of single photons. At first, we reviewed the generation of narrowband photon pairs through four wave mixing and slow light with high optical depth cold atoms. Secondly, we reviewed the generation and manipulation of the heralded narrowband single photons with controllable waveforms. Thirdly, we reviewed the application of the heralded narrowband single photons: (1) single photon precursor; (2) the coherent interaction between the heralded narrowband single photon and two energy level atoms; (3) DPS quantum key distribution with the heralded narrowband single photons.
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