Quantum state discrimination lies at the heart of quantum communication, governing how information encoded in non-orthogonal states of light or matter can be distinguished with utmost fidelity. Unlike ...

Photon detection and quantum state characterization form the backbone of modern quantum photonics, enabling both fundamental studies of light–matter interactions and practical advances in quantum ...

The concept of quantum entanglement is emblematic of the gap between classical and quantum physics. Referring to a situation in which it is impossible to describe the physics of each photon separately ...

A team of physicists in Japan has figured out how to identify a fragile, three-photon quantum state in a single measurement, ...