107 citations · 119 across the 2 of their papers we have counts for
7 papers
Out-of-time-order correlations and the fine structure of eigenstate thermalisation
Marlon Brenes, Silvia Pappalardi, Mark T. Mitchison +2
Out-of-time-order correlators (OTOCs) have become established as a tool to characterise quantum information dynamics and thermalisation in interacting quantum many-body systems. It…
Bridging entanglement dynamics and chaos in semiclassical systems
Alessio Lerose, Silvia Pappalardi
It is widely recognized that entanglement generation and dynamical chaos are intimately related in semiclassical models via the process of decoherence. In this work, we propose a u…
Quantum echo dynamics in the Sherrington-Kirkpatrick model
Silvia Pappalardi, Anatoli Polkovnikov, Alessandro Silva
Understanding the footprints of chaos in quantum-many-body systems has been under debate for a long time. In this work, we study the echo dynamics of the Sherrington-Kirkpatrick (S…
Multipartite entanglement structure in the Eigenstate Thermalization Hypothesis
Marlon Brenes, Silvia Pappalardi, John Goold +1
We study the quantum Fisher information (QFI) and, thus, the multipartite entanglement structure of thermal pure states in the context of the Eigenstate Thermalization Hypothesis (…
Entanglement entropy of the long-range Dyson hierarchical model
Silvia Pappalardi, Pasquale Calabrese, Giorgio Parisi
We study the ground state entanglement entropy of the quantum Dyson hierarchical spin chain in which the interaction decays algebraically with the distance as . We exploi…
Origin of the slow growth of entanglement entropy in long-range interacting spin systems
Alessio Lerose, Silvia Pappalardi
Long-range interactions allow far-distance quantum correlations to build up very fast. Nevertheless, numerical simulations demonstrated a dramatic slowdown of entanglement entropy…