The future development of quantum technologies relies on creating and manipulating
quantum systems of increasing complexity, with key applications in computation, simulation …

Quantum metrology can achieve far better precision than classical metrology, and is one of
the most important applications of quantum technologies in the real world. To attain the …

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 …

The interest in a system often resides in the interplay among different parameters governing
its evolution. It is thus often required to access many of them at once for a complete …

The recent advent of noisy intermediate-scale quantum devices, especially near-term
quantum computers, has sparked extensive research efforts concerned with their possible …

We characterize operationally meaningful quantum gains in a paradigmatic model of
lossless multiple-phase interferometry and stress the insufficiency of the analysis based …

Quantum error correction and symmetry arise in many areas of physics, including many-
body systems, metrology in the presence of noise, fault-tolerant computation, and …

We derive fundamental bounds on the maximal achievable precision in multiparameter
noisy quantum metrology, valid under the most general entanglement-assisted adaptive …

The quantum Fisher information (QFI), as a function of quantum states, measures the
amount of information that a quantum state carries about an unknown parameter. The …

We present a simple proof of the approximate Eastin-Knill theorem, which connects the
quality of a quantum error-correcting code (QECC) with its ability to achieve a universal set …