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

We use quantum detector tomography to characterize the qubit readout in terms of
measurement positive operator-valued measures (POVMs) on IBM quantum computers IBM …

We generate pulsed, two-mode squeezed states in a single spatiotemporal mode with mean
photon numbers up to 20. We directly measure photon-number correlations between the two …

In this paper we intend to give a comprehensive description of the current understanding of
the detection mechanism in superconducting nanowire single-photon detectors. We will …

Ultrafast single-photon detectors with high efficiency are of utmost importance for many
applications in the context of integrated quantum photonic circuits. Detectors based on …

We derive a closed photocounting formula, including noise counts and a finite quantum
efficiency, for photon-number-resolving detectors based on on-off detectors. It applies to …

Deterministic generation of single photons is essential for many quantum information
technologies. A bulk optical nonlinearity emitting a photon pair, where the measurement of …

One of the core questions of quantum physics is how to reconcile the unitary evolution of
quantum states, which is information-preserving and time-reversible, with evolution following …

Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom
wavelength optical quantum information science applications. Quantum detector …

Quantum states and measurements exhibit wave-like (continuous) or particle-like (discrete)
character. Hybrid discrete–continuous photonic systems are key to investigating …