199 citations · 1k across the 36 of their papers we have counts for
36 papers
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, Silvia Pappalardi, Rosario Fazio
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…
Theory of Out-of-Time-Ordered Transport
Ruchira Mishra, Jiaozi Wang, Silvia Pappalardi +1
We construct an effective field theory (EFT) that captures the universal behavior of out-of-time-order correlators (OTOCs) at late times in generic quantum many-body systems with c…
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…
Free Independence and Unitary Design from Random Matrix Product Unitaries
Neil Dowling, Jacopo De Nardis, Markus Heinrich +2
Unitary randomness underpins both fundamental tasks in quantum information and the modern theory of quantum chaos. On one side, a central concept is that of approximate unitary des…
Eigenstate Thermalization Hypothesis correlations via non-linear Hydrodynamics
Jiaozi Wang, Ruchira Mishra, Tian-Hua Yang +2
The thermalizing dynamics of many-body systems is often described through the lens of the Eigenstate Thermalization Hypothesis (ETH). ETH postulates that the statistical properties…
Statistics of the Random Matrix Spectral Form Factor
Alex Altland, Francisco Divi, Tobias Micklitz +2
The spectral form factor of random matrix theory plays a key role in the description of disordered and chaotic quantum systems. While its moments are known to be approximately Gaus…
Multipartite entanglement structure of monitored quantum circuits
Arnau Lira-Solanilla, Xhek Turkeshi, Silvia Pappalardi
Monitored quantum circuits have attracted significant interest as an example of synthetic quantum matter, intrinsically defined by their quantum information content. Here, we propo…
Towards scalable active steering protocols for genuinely entangled state manifolds
Samuel Morales, Silvia Pappalardi, Reinhold Egger
We introduce and analyze an active steering protocol designed to target multipartite entangled states. The protocol involves multiple qubits subjected to weak Bell pair measurement…
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…
Thermalization and hydrodynamic long-time tails in a Floquet system
Anne Matthies, Nicolas Dannenfeld, Silvia Pappalardi +1
We systematically investigate whether classical hydrodynamic field theories can predict the long-time dynamics of many-particle quantum systems. We study both numerically and analy…
Microcanonical Free Cumulants in lattice systems
Felix Fritzsch, Tomaž Prosen, Silvia Pappalardi
Recently, the full version of the Eigenstate Thermalization Hypothesis (ETH) has been systematized using Free Probability. In this paper, we present a detailed discussion of the Fr…
Random matrix universality in dynamical correlation functions at late times
Oscar Bouverot-Dupuis, Silvia Pappalardi, Jorge Kurchan +2
We study the behavior of two-time correlation functions at late times for finite system sizes considering observables whose (one-point) average value does not depend on energy. In…
Out-of-equilibrium Eigenstate Thermalization Hypothesis
Laura Foini, Anatoly Dymarsky, Silvia Pappalardi
Understanding how out-of-equilibrium states thermalize under quantum unitary dynamics is an important problem in many-body physics. In this work, we propose a statistical ansatz fo…
Theory of robust quantum many-body scars in long-range interacting systems
Alessio Lerose, Tommaso Parolini, Rosario Fazio +2
Quantum many-body scars (QMBS) are exceptional energy eigenstates of quantum many-body systems associated with violations of thermalization for special non-equilibrium initial stat…
Designs via Free Probability
Michele Fava, Jorge Kurchan, Silvia Pappalardi
Unitary Designs have become a vital tool for investigating pseudorandomness since they approximate the statistics of the uniform Haar ensemble. Despite their central role in quantu…
Quantum Many-Body Scars in Dual-Unitary Circuits
Leonard Logarić, Shane Dooley, Silvia Pappalardi +1
Dual-unitary circuits are a class of quantum systems for which exact calculations of various quantities are possible, even for circuits that are nonintegrable. The array of known e…
Out-of-equilibrium dynamics of quantum many-body systems with long-range interactions
Nicolò Defenu, Alessio Lerose, Silvia Pappalardi
Experimental progress in atomic, molecular, and optical platforms in the last decade has stimulated strong and broad interest in the quantum coherent dynamics of many long-range in…
Microcanonical windows on quantum operators
Silvia Pappalardi, Laura Foini, Jorge Kurchan
We discuss the construction of a microcanonical projection WOW of a quantum operator O induced by an energy window filter W, its spectrum, and the retrieval of canonical many-time…
Full Eigenstate Thermalization via Free Cumulants in Quantum Lattice Systems
Silvia Pappalardi, Felix Fritzsch, Tomaž Prosen
The Eigenstate-Thermalization-Hypothesis (ETH) has been established as the general framework to understand quantum statistical mechanics. Only recently has the attention been paid…
Quantum bounds on the generalized Lyapunov exponents
Silvia Pappalardi, Jorge Kurchan
We discuss the generalized quantum Lyapunov exponents , defined from the growth rate of the powers of the square commutator. They may be related to an appropriately defined th…
Entanglement enhanced metrology with quantum many-body scars
Shane Dooley, Silvia Pappalardi, John Goold
Although entanglement is a key resource for quantum-enhanced metrology, not all entanglement is useful. For example in the process of many-body thermalisation, bipartite entangleme…