One of the most fundamental results in quantum information theory is that no measurement
can perfectly discriminate between nonorthogonal quantum states. In this work, we …

Optical communication technology can be enhanced by using quantum signals to transfer
classical bits. This requires the message-carrying signals to interact coherently at the …

We consider all-optical networks from a quantum perspective. We show that optimal
quantum receivers allow a decrease in energy consumption of all-optical amplifiers …

We consider the tasks of learning quantum states, measurements and channels generated
by continuous-variable (CV) quantum circuits. This family of circuits is suited to describe …

Bit-transmission can be enhanced by the use of quantum detection techniques, realizing a
joint-detection receiver (JDR) that is able to decode transmitted signals via a collective …

Quantum information theory predicts that communication technology can be enhanced by
using quantum signals to transfer classical bits. In order to fulfill this promise, the message …

A fundamental problem in quantum information processing is the discrimination among a set
of quantum states of a system. In this paper, we address this problem on an open quantum …

We study the problem of calibrating a quantum receiver for optical coherent states when
transmitted on a quantum optical channel with variable transmissivity, a common model for …

In this work, we present the analysis of the quantum detection of information-carrying
coherent states used in optical communications systems that employ the degrees of freedom …

We compute the n-shot classical capacity of the quantum erasure channel, providing upper
bounds and almost-matching lower bounds for it, the latter achievable via large-minimum …