Photonic quantum technologies represent a promising platform for several applications,
ranging from long-distance communications to the simulation of complex phenomena …

Quantum information theory is built upon the realisation that quantum resources like
coherence and entanglement can be exploited for novel or enhanced ways of transmitting …

The resource theory of quantum coherence studies the off-diagonal elements of a density
matrix in a distinguished basis, whereas the resource theory of purity studies all deviations …

Quantum metrology overcomes standard precision limits and plays a central role in science
and technology. Practically, it is vulnerable to imperfections such as decoherence. Here we …

Entanglement-assisted quantum communication employs preshared entanglement between
sender and receiver as a resource. We apply the same framework to quantum metrology …

In recent years, quantum computing has made significant strides, particularly in light-based
technology. The introduction of quantum photonic chips has ushered in an era marked by …

A quantum channel describes the general evolution of quantum systems, which is therefore
a critical issue for quantum simulation and a fundamental element of quantum information …

The measurement of correlations between different degrees of freedom is an important, but,
in general, extremely difficult task in many applications of quantum mechanics. Here, we …

We study the collective dephasing process of a system of non-interacting atomic qubits,
immersed in a spatially uniform magneticfield offluctuating intensity. The correlation …

Quantum multiparameter estimation involves estimating multiple parameters simultaneously
and can be more precise than estimating them individually. Our interest here is to determine …