Quantum coherence is a fundamental property of quantum systems, separating quantum
from classical physics. Recently, there has been significant interest in the characterization of …

Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

Quantum computers solve ever more complex tasks using steadily growing system sizes.
Characterizing these quantum systems is vital, yet becoming increasingly challenging. The …

Quantum networks will provide multinode entanglement enabling secure communication on
a global scale. Traditional quantum communication protocols consume pair-wise …

Efficient distributed computing offers a scalable strategy for solving resource-demanding
tasks, such as parallel computation and circuit optimisation. Crucially, the communication …

Quantum systems can be exploited for disruptive technologies but in practice quantum
features are fragile due to noisy environments. Quantum coherence, a fundamental such …

Quantum phase-estimation protocols can provide a measuring method of phase shift with
precision superior to the standard quantum limit (SQL) due to the application of a …

Abstract Information about a classical parameter encoded in a quantum state can only
decrease if the state undergoes a non-unitary evolution, arising from the interaction with an …

Reconstructing the state of a quantum system, called quantum state tomography, is an
essential task in quantum technologies. Standard methods are inefficient, as they scale …

The interaction with the environment is one of the main obstacles to be circumvented in
practical implementations of quantum information tasks. The use of local unitaries, while not …