16 papers
Refinements of the Eigenstate Thermalization Hypothesis under Local Rotational Invariance via Free Probability
Elisa Vallini, Laura Foini, Silvia Pappalardi
The Eigenstate Thermalization Hypothesis (ETH) was developed as a framework for understanding how the principles of statistical mechanics emerge in the long-time limit of isolated…
Long-time Freeness in the Kicked Top
Elisa Vallini, Silvia Pappalardi
Recent work highlighted the importance of higher-order correlations in quantum dynamics for a deeper understanding of quantum chaos and thermalization. The full Eigenstate Thermali…
Planckian dissipation from classical hydrodynamics
Laura Foini, Jorge Kurchan, Silvia Pappalardi
In this work we ask what the self-consistency of a classical hydrodynamic description imposes on a quantum system. The quantum fluctuation-dissipation theorem, when read in the tim…
Page Curve for Local-Operator Entanglement from Free Probability
Neil Dowling, Silvia Pappalardi
The local-operator entanglement (LOE) measures the classical simulability of a Heisenberg operator and is conjectured to witness many-body chaos in locally interacting systems. Usi…
Quantum Mpemba effect in chaotic systems with conservation laws
Thomas Martin Müller, Thomas Martin Müller, Silvia Pappalardi +1
Closed chaotic quantum systems relax after a quench into a Gibbs ensemble. At late times, the relaxation speed is determined by their conservation laws and hydrodynamics. As a resu…
Assembling Extensive Quantum Fisher Information in Stabilizer Systems
Arnau Lira-Solanilla, Sreemayee Aditya, Xhek Turkeshi +1
We introduce a systematic framework to construct nonlocal observables with extensive quantum Fisher information (QFI) density in stabilizer codes. The construction maps stabilizer…