Quantum technologies comprise an emerging class of devices capable of controlling
superposition and entanglement of quantum states of light or matter, to realize fundamental …

A central goal in quantum optics and quantum information science is the development of
quantum networks to generate entanglement between distributed quantum memories …

Two decades after their demonstration, superconducting nanowire single-photon detectors
(SNSPDs) have become indispensable tools for quantum photonics as well as for many …

Integration of superconducting nanowire single-photon detectors with nanophotonic
waveguides is a key technological step that enables a broad range of classical and quantum …

Practical applications implementing integrated photonic circuits can benefit from nonlinear
optical functionalities such as wavelength conversion, all-optical signal processing, and …

Quantum mechanics promises to have a strong impact on many aspects of research and
technology, improving classical analogues via purely quantum effects. A large variety of …

Fully integrated quantum photonic circuits show a clear advantage in terms of stability and
scalability compared to tabletop implementations. They will constitute a fundamental …

We report on scalable heterointegration of superconducting electrodes and epitaxial
semiconductor quantum dots (QDs) on strong piezoelectric and optically nonlinear lithium …

Femtosecond optical pump–probe spectroscopy is employed to elucidate the ultrafast carrier
nonradiative relaxation dynamics of bare GaAs and a core–shell GaAs/AlGaAs …

We demonstrate cryogenic, all on-chip, single-photon-level photonic integrated circuits on a
III-V platform with waveguide-coupled quantum-well sources and tungsten silicide …