Optical photons are powerful carriers of quantum information, which can be delivered in free
space by satellites or in fibers on the ground over long distances. Entanglement of quantum …

We investigate the interaction of laser pulses carrying orbital angular momentum (OAM) with
a symmetry-broken ladder-type quantum coupling scheme involving three internal states. A …

The T center, a silicon-native spin-photon interface with telecommunication-band optical
transitions and long-lived microwave qubits, offers an appealing new platform for both …

The concept of bound states in the continuum (BICs) in a simple cavity attracts much interest
in recent works in wave physics. The BICs are perfectly confined modes with an infinite …

On-demand storage and retrieval of quantum information in coherent light-matter interfaces
is a key requirement for future quantum networking and quantum communication …

We report spectroscopy experiments of rubidium vapor in a high magnetic field under
conditions of electromagnetically induced transparency (EIT) and optical pum**. The 1.1-T …

Broadband quantum memory is critical to enabling the operation of emerging photonic
quantum technology at high speeds. Here we review a central challenge to achieving …

Large-scale quantum networks require quantum memories featuring long-lived storage of
non-classical light together with efficient, high-speed and reliable operation. The concurrent …

The rapid progress in quantum information processing leads to a rising demand for devices
to control the propagation of electromagnetic wave pulses and to ultimately realize universal …

We propose a scheme to exchange optical vortices beyond electromagnetically induced
transparency (EIT) but based on four-wave mixing (FWM) in a five-level atomic system …