Entanglement between a stationary quantum system and a flying qubit is an essential
ingredient of a quantum-repeater network. It has been demonstrated for trapped ions …

Spontaneous parametric down-conversion (SPDC) in a nonlinear crystal has been a
workhorse for the generation of entangled and correlated single-photon pairs used for …

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 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 …

Entanglement-based quantum networks require quantum photonic interfaces between
stationary quantum memories and photons, enabling entanglement distribution. Here we …

We report on a source of heralded narrowband ($\approx 3$ MHz) single photons
compatible with solid-state spin-wave quantum memories based on praseodymium doped …

Mode-locked biphoton frequency combs exhibit multiple discrete comblike temporal
correlations from the Fourier transform of its phase-coherent frequency spectrum. Both …

Future ground-based quantum information networks will likely use single photons
transmitted through optical fibers to entangle individual network nodes. To extend …

When the collective coupling of the rovibrational states in organic molecules and confined
electromagnetic modes is sufficiently strong, the system enters into vibrational strong …

We report on quantum frequency conversion of near-infrared photons from a wave-length of
854 nm to the telecommunication O-band at 1310 nm with 8% overall conversion efficiency …