We address multiparameter quantum estimation for coherently driven nonlinear Kerr
resonators in the presence of loss. In particular, we consider the realistic situation in which …

A measurement of an observable A performed on a quantum system that is initially prepared
in a state ρ i, followed by a probabilistic procedure that leaves the system in a final state ρ f …

A paradigm for quantum synchronization is the quantum analog of the Stuart-Landau
oscillator, which corresponds to a van der Pol oscillator in the limit of weak (ie, vanishingly …

Nonclassicality is a key ingredient for quantum enhanced technologies and experiments
involving macroscopic quantum coherence. Considering various exactly solvable quantum …

It is typical of modern quantum technologies employing nanomechanical oscillators to
demand few mechanical quantum excitations, for instance, to prolong coherence times of a …

We introduce a strategy to regulate the quantum entanglement in a dispersive-hybrid system
where a qubit is directly coupled to a cavity and a resonator. A dramatic transition takes …

Macroscopic quantum superposition states are fundamental to test the classical-quantum
boundary and present suitable candidates for quantum technologies. Although the …

We address quantitatively the relationship between the nonlinearity of a mechanical
resonator and the nonclassicality of its ground state. In particular, we analyze the …

Precision measurements of gravitational acceleration, or gravimetry, enable the testing of
physical theories and find numerous applications in geodesy and space exploration. By …

When the strength of interaction between a quantum system and bath is non-negligible, the
equilibrium state can deviate from the Gibbs state. Here, we obtain an approximate …