33 citations · 61 across the 13 of their papers we have counts for
13 papers
Temperature Beyond Equilibrium in Isolated Quantum Many-Body Systems and Their Subsystems
Maurizio Fagotti
Temperature is one of the central concepts of thermodynamics, yet its meaning far from equilibrium remains unclear. The problem is especially challenging in isolated quantum many-b…
Emergent integrable dynamics in a non-integrable Rydberg-atom chain
Gianluca Morettini, Luca Capizzi, Leonardo Mazza +1
We show that integrable and non-integrable dynamics can coexist in the same Rydberg-atom chain, depending on the initial state in which the system is prepared. In the setting we co…
Observing weakly broken conservation laws in a dipolar Rydberg quantum spin chain
Cheng Chen, Luca Capizzi, Alice Marché +6
Integrable quantum many-body systems host families of extensive conservation laws, some of which are fragile: even infinitesimal perturbations can qualitatively alter their dynamic…
A Route to Quantum-Coherent Thermodynamics
Maurizio Fagotti
Equilibrium thermodynamics emerges because a vast number of microscopic states become indistinguishable at the level of local observables. We start from the observation that a none…
Kicking Quantum Fisher Information out of Equilibrium
Florent Ferro, Maurizio Fagotti
Quantum Fisher Information (QFI) is a ubiquitous quantity with applications ranging from quantum metrology and resource theories to condensed matter physics. In equilibrium local q…
Transport in a System with a Tower of Quantum Many-Body Scars
Gianluca Morettini, Luca Capizzi, Maurizio Fagotti +1
We report the observation of unconventional transport phenomena in a spin-1 model that supports a tower of quantum many-body scars, and we discuss their properties uncovering their…
Disorder-Order Interface Propagating over the Ferromagnetic Ground State in the Transverse Field Ising Chain
Vanja Marić, Florent Ferro, Maurizio Fagotti
We consider time evolution of order parameters and entanglement asymmetries in the ferromagnetic phase of the transverse-field Ising chain. One side of the system is prepared in a…
Macroscopic Quantum States and Universal Correlations in a Disorder-Order Interface Propagating over a 1D Ground State
Vanja Marić, Florent Ferro, Maurizio Fagotti
We consider translationally invariant quantum spin- chains with local interactions and a discrete symmetry that is spontaneously broken at zero temperature. We envisio…
Asymptotic behaviour of determinants through the expansion of the Moyal star product
Maurizio Fagotti, Vanja Marić
We work out a generalization of the Szegö limit theorems on the determinant of large matrices. We focus on matrices with nonzero leading principal minors and elements that decay to…
Energy-filtered quantum states and the emergence of non-local correlations
Gianluca Morettini, Luca Capizzi, Maurizio Fagotti +1
Energy-filtered quantum states are promising candidates for efficiently simulating thermal states. We explore a protocol designed to transition a product state into an eigenstate l…
Entanglement entropy of two disjoint intervals and spin structures in interacting chains in and out of equilibrium
Vanja Marić, Saverio Bocini, Maurizio Fagotti
We take the paradigm of interacting spin chains, the Heisenberg spin- XXZ model, as a reference system and consider interacting models that are related to it by Jordan…
Measurement catastrophe and ballistic spread of charge density with vanishing current
Lenart Zadnik, Saverio Bocini, Kemal Bidzhiev +1
One of the features of many-body quantum systems with Hilbert-space fragmentation is the existence of stationary states manifesting quantum jamming. It was recently shown that thes…
New insights into the entanglement of disjoint blocks
Maurizio Fagotti
We study the entanglement of two disjoint blocks in spin-1/2 chains obtained by merging solvable models, such as XX and quantum Ising models. We focus on the universal quantities t…