Scrambling processes, which rapidly spread entanglement through many-body quantum
systems, are difficult to investigate using standard techniques, but are relevant to quantum …

We demonstrate analytically and verify numerically that the out-of-time order correlator is
given by the thermal average of Loschmidt echo signals. This provides a direct link between …

Abstract The Kirkwood-Dirac quasiprobability distribution, intimately connected with the
quantum correlation function of two observables measured at distinct times, is becoming …

The dynamical signatures of quantum chaos in an isolated system are captured by the
spectral form factor, which exhibits as a function of time a dip, a ramp, and a plateau, with the …

Strong local disorder in interacting quantum spin chains can turn delocalized eigenmodes
into localized eigenstates, giving rise to many-body localized phases. This is accompanied …

Recent work has revealed the central role played by the Kirkwood-Dirac quasiprobability
(KDQ) as a tool to properly account for non-classical features in the context of condensed …

Quantum chaos imposes universal spectral signatures that govern the thermofield dynamics
of a many-body system in isolation. The fidelity between the initial and time-evolving …

Quantum nanodevices are fundamental systems in quantum thermodynamics that have
been the subject of profound interest in recent years. Among these, quantum batteries play a …

Out-of-time-order correlators (OTOCs) progressively play an important role in different fields
of physics, particularly in the nonequilibrium quantum many-body systems. In this paper, we …

We study the connections between three quantities that can be used as diagnostics for
quantum chaos, ie, the out-of-time-order correlator (OTOC), Loschmidt echo (LE), and …