A quantum memory, for storing and retrieving flying photonic quantum states, is a key
interface for realizing long-distance quantum communication and large-scale quantum …

Entangled photon pairs, termed as biphotons, have been the benchmark tool for
experimental quantum optics. The quantum-network protocols based on photon–atom …

The generation of ultra-narrowband, pure and storable single photons with widely tunable
wave shape is an enabling step toward hybrid quantum networks requiring interconnection …

We report 100% duty cycle generation of sub-MHz single photon pairs at the rubidium D 1
line using cavity-enhanced spontaneous parametric downconversion. The temporal intensity …

Quantum information technology strongly relies on the coupling of optical photons with
narrowband quantum systems, such as quantum dots, color centers, and atomic systems …

Biphotons, generated from a hot atomic vapor via the process of spontaneous four-wave
mixing (SFWM), have the following merits: Stable and tunable frequencies as well as …

We report the generation of biphotons, with a temporal full width at the half maximum
(FWHM) of 13.4±0.3 µs and a spectral FWHM of 50±1 kHz, via the process of spontaneous …

We demonstrate that a single photon with an optimal temporal waveform can be efficiently
loaded into a cavity. Using heralded narrow-band single photons with exponential growth …

We utilized the all-copropagating scheme, which maintains the phase-match condition, in
the spontaneous four-wave mixing (SFWM) process to generate biphotons from a hot atomic …

Strongly correlated Stokes and anti-Stokes photon pairs (biphotons) exhibiting very large
generation rates and spectral brightnesses could be attained at extremely low pump powers …