Superconducting nanowire single-photon detectors (SNSPDs) are the highest-performing
photon-counting technology in the near-infrared region. Because of delay-line effects, large …

We analyze the performance of photon-number-resolving (PNR) detectors and introduce a
figure of merit for the accuracy of such detectors. This figure of merit is the (worst-case) …

Common methods to achieve photon number resolution rely on fast on-off single-photon
detectors in conjunction with temporal or spatial mode multiplexing. Yet, these methods …

Single-photon detectors are ubiquitous and integral components of photonic quantum
cryptography, communication, and computation. Many applications, however, require not …

Hybrid logical qubit entangled state (HLES) that consists of both polarization part and
coherent state part has drawn much attention and been applied in many quantum …

Quantum key distribution with continuous variables already uses advantageous high-speed
single-mode homodyne detection with low electronic noise at room temperature. Together …

We address state reconstruction by photon-number-resolving detectors, and demonstrate
that they may be effectively exploited to perform quantum tomography of states of light. In …

Photon number resolving (PNR) capability is very important in many optical applications,
including quantum information processing, fluorescence detection, and few-photon-level …

Photon number resolving (PNR) is an important capacity for detectors working in quantum
and classical applications. Although a conventional superconducting nanowire single …

We show that sharing a quantum reference frame requires sharing measurement operators
that identify the reference frame in addition to operators that measure its state. Observers …