Communication is an integral part of human life. Today, optical pulses are the preferred
information carriers for long-distance communication. The exponential growth in data leads …

Physical realizations of the canonical phase measurement for the optical phase are
unknown. Single-shot phase estimation, which aims to determine the phase of an optical …

We propose a hybrid feed-forward receiver (HFFRE) for the discrimination of binary phase-
shift-keyed coherent states based on the appropriate combination of a displacement feed …

We address a continuous-variable quantum key distribution protocol employing quaternary
phase-shift-keying of coherent states and a non-Gaussian measurement inspired by …

The achievable rate of information transfer in optical communications is determined by the
physical properties of the communication channel, such as the intrinsic channel noise …

Quantum receivers aim to effectively navigate the vast quantum-state space to endow
quantum information processing capabilities unmatched by classical receivers. To date, only …

Information exchange requires a measurement of physical states. Because quantum
measurements enable accuracy beyond the classical shot-noise limit, they are successfully …

Discrimination of coherent states beyond the standard quantum limit (SQL) is an important
task not only for quantum information processing but also for optical coherent …

Generalized quantum measurements identifying nonorthogonal states without ambiguity
often play an indispensable role in various quantum applications. For such an unambiguous …

The optimal discrimination of coherent states of light with current technology is a key
problem in classical and quantum communication, whose solution would enable the …