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 ...

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 ...

Alice and Bob use entangled particles to securely exchange a message or cryptographic key (Credit: A. Dutra and T. Ohst). Quantum technologies often imagine distant users – Alice and Bob – sharing ...

Quantum computers lack useful functionality without the right algorithms to facilitate their operation. Currently, there are ...