Quantum-enhanced measurements exploit quantum mechanical effects for increasing the
sensitivity of measurements of certain physical parameters and have great potential for both …

We review the quantum fidelity approach to quantum phase transitions in a pedagogical
manner. We try to relate all established but scattered results on the leading term of the …

We study exactly both the ground-state fidelity susceptibility and bond-bond correlation
function in the Kitaev honeycomb model. Our results show that the fidelity susceptibility can …

We study finite-temperature dynamical quantum phase transitions (DQPTs) by means of the
fidelity and the interferometric Loschmidt echo (LE) induced metrics. We analyze the …

We introduce a family of quantum Rényi fidelities and discuss their symmetry resolution. We
express the symmetry-resolved fidelities as Fourier transforms of charged fidelities, for which …

We apply the fidelity metric approach to analyze two recently introduced models that exhibit
a quantum phase transition to a topologically ordered phase. These quantum models have a …

We study a quantum Otto engine operating on the basis of a helical spin-1/2 multiferroic
chain with strongly coupled magnetic and ferroelectric order parameters. The presence of a …

We study the critical properties of the Lipkin-Meshkov-Glick model in terms of the fidelity
susceptibility. By using the Holstein-Primakoff transformation, we obtain explicitly the critical …

We investigate quantum phase transitions in one-dimensional quantum disordered lattice
models, the Anderson model and the Aubry-André model, from the fidelity susceptibility …

We study the quantum fidelity approach to characterize thermal phase transitions.
Specifically, we focus on the mixed-state fidelity induced by a perturbation in temperature …