Interacting many-body systems display enhanced sensitivity close to critical transition points
due to diverging quantum fluctuations. This criticality-based enhancement has been …

Critical metrology relies on the precise preparation of a system in its ground state near a
quantum phase transition point where quantum correlations get very strong. Typically, this …

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Quantum metrology pursues the physical realization of higher‐precision measurements to
physical quantities than the classically achievable limit by exploiting quantum features, such …

We investigate critical quantum metrology, that is, the estimation of parameters in many-
body systems close to a quantum critical point, through the lens of Bayesian inference …

We compare critical quantum sensing to passive quantum strategies to perform frequency
estimation, in the case of single-mode quadratic Hamiltonians. We show that, while in the …

Critical quantum systems are a promising resource for quantum metrology applications, due
to the diverging susceptibility developed in proximity of phase transitions. Here, we assess …

We study quantum-impurity models as a platform for quantum thermometry. A single
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …

The main power of quantum sensors is achieved when the probe is composed of several
particles. In this situation, quantum features such as entanglement contribute in enhancing …

Quantum many-body systems undergoing phase transitions have been proposed as probes
enabling beyond-classical enhancement of sensing precision. However, this enhancement …