Entanglement is a quintessential quantum mechanical phenomenon with no classical
equivalent. First discussed by Einstein, Podolsky, and Rosen and formally introduced by …

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 …

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

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

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 demonstrate an optical receiver that achieves the quantum Chernoff bound for
discriminating coherent states from thermal states in the multicopy scenario. In contrast, we …

We present the analysis of the quantum detection of modulated coherent states used in
quantum communications systems that employ the degrees of freedom of both the complex …

The discrimination of coherent states is a key task in optical communication and quantum
key distribution protocols. In this work, we use a photon-number-resolving detector, the …

Optical links can achieve spectral efficiencies beyond the Shannon limit by employing
quantum joint detection receivers that decode messages collectively. We introduce a novel …

摘要量子精密测量可以提供超越传统测量方法极限的测量精度和分辨能力. 在过去几十年里,
固定参数的量子增强技术取得了长足的进展. 时变参数估计是引力波探测, 导航定位等实际工程 …