Quantum criticality, as a fascinating quantum phenomenon, may provide significant
advantages for quantum sensing. Here we propose a dynamic framework for quantum …

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 …

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 …

The quantum Rabi model (QRM) with linear coupling between light mode and qubit exhibits
the analog of a second-order phase transition for vanishing mode frequency which allows …

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Phase transitions represent a compelling tool for classical and quantum sensing
applications. It has been demonstrated that quantum sensors can in principle saturate the …

Quantum sensing improves the accuracy of measurements of relevant parameters by
exploiting the unique properties of quantum systems. The divergent susceptibility of physical …

Describing the evolution of quantum systems by means of non-Hermitian generators opens
a new avenue to explore the dynamical properties naturally emerging in such a picture, eg …

We show that the performance of critical quantum metrology protocols, counterintuitively,
can be enhanced by finite temperature. We consider a toy-model squeezing Hamiltonian …

Random walks are fundamental models of stochastic processes with applications in various
fields, including physics, biology, and computer science. We study classical and quantum …