In a fibre-based quantum information network, telecom-wavelength transmission between
quantum memory elements is required to minimize absorption. Owing to the paucity of …

Entanglement of a 795 nm light polarization qubit and an atomic Rb spin-wave qubit for a
storage time of 0.1 s is observed by measuring the violation of Bell's inequality (S …

We propose a scheme to generate structured light using a medium consisting of
semiconductor quantum dots via four-wave mixing (FWM). We consider a four-level quantum …

Interfacing superconducting qubits with optical photons require noise-free microwave-to-
optical transducers, a technology currently not realized at the single-photon level. We …

Detecting a single photon without absorbing it is a long-standing challenge in quantum
optics. All experiments demonstrating the nondestructive detection of a photon make use of …

Applying large magnetic fields to gain access to the hyperfine Paschen-Back regime can
isolate three-level systems in a hot alkali metal vapors, thereby simplifying usually complex …

We present measurements of the cross-correlation function of photon pairs at 780 and 1367
nm, generated in a hot rubidium vapor cell. The temporal character of the biphoton is …

We present measurements of the polarization correlation and photon statistics of photon
pairs that emerge from a laser-pumped warm rubidium vapor cell. The photon pairs occur at …

We present an experimental study of seeded four-wave mixing (4WM) using a diamond
excitation scheme (with states from the 5 S 1/2, 5 P 1/2, 5 P 3/2 and 5 D 3/2 terms) in a …

We experimentally demonstrated that infrared light imprinted with orbital angular momentum
(OAM) was linearly converted into visible light using four-wave mixing (FWM) via a ladder …