Spins of impurities in solids provide a unique architecture to realize quantum technologies.
A quantum register of electron and nearby nuclear spins in the lattice encompasses high …

Quantum light–matter interfaces are at the heart of photonic quantum technologies.
Quantum memories for photons, where non-classical states of photons are mapped onto …

Quantum dots (QDs) embedded in photonic nanostructures have in recent years proven to
be a very powerful solid-state platform for quantum optics experiments. The combination of …

A central aim of quantum information processing is the efficient entanglement of multiple
stationary quantum memories via photons. Among solid-state systems, the nitrogen-vacancy …

Optical microcavities enhance light–matter interactions and are essential for many
experiments in solid state quantum optics, optomechanics, and nonlinear optics. Single …

The field of propagating quantum microwaves is a relatively new area of research that is
receiving increased attention due to its promising technological applications, both in …

We report on the high-pressure synthesis of novel nano-and microcrystalline diamonds with
germanium–vacancy (Ge–V) color centers emitting at 602 nm. The synthesis was carried out …

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 …

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 …

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 …