We demonstrate the emergence of nonreciprocal superradiant phase transitions and novel
multicriticality in a cavity quantum electrodynamics system, where a two-level atom interacts …

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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 …

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

Spontaneous collapse models, which are phenomenological mechanisms introduced and
designed to account for dynamical wavepacket reduction, are attracting a growing interest …

We consider the impact that temporal correlations in the measurement statistics can have on
the achievable precision in a sequential metrological protocol. In this setting, and for a single …

Critical quantum metrology relies on the extreme sensitivity of a system's eigenstates near
the critical point of a quantum phase transition to Hamiltonian perturbations. This means that …

Quantum Fisher information (QFI) may exhibit the irregular behavior at the critical point of
phase transitions of a physical system and be very sensitive to slight variations of some …

Light‐matter interactions provide an ideal testground for interplay of critical phenomena,
topological transitions, quantum metrology, and non‐Hermitian physics with high …

The comprehension of quantum phase transitions (QPTs) is considered as a critical foothold
in the field of many-body physics. Developing protocols to effectively identify and understand …