A quantum internet is the holy grail of quantum information processing, enabling the
deployment of a broad range of quantum technologies and protocols on a global scale …

Discrete frequency modes, or bins, present a blend of opportunities and challenges for
photonic quantum information processing. Frequency-bin-encoded photons are readily …

Integrated photonics will play a key role in quantum systems as they grow from few-qubit
prototypes to tens of thousands of qubits. The underlying optical quantum technologies can …

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 …

Field-orthogonal temporal modes of photonic quantum states provide a new framework for
quantum information science (QIS). They intrinsically span a high-dimensional Hilbert space …

A few decades ago, quantum optics stood out as a new domain of physics by exhibiting
states of light with no classical equivalent. The first investigations concerned single photons …

Optical whispering gallery modes (WGMs) derive their name from a famous acoustic
phenomenon of guiding a wave by a curved boundary observed nearly a century ago. This …

Optical frequency conversion has applications ranging from tunable light sources to
telecommunications-band interfaces for quantum information science. Here, we demonstrate …

Both classical and quantum systems utilize the interaction of light and matter across a wide
range of energies. These systems are often not naturally compatible with one another and …

A future quantum internet is expected to generate, distribute, store and process quantum bits
(qubits) over the world by linking different quantum nodes via quantum states of light. To …