10 papers
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…
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…
Quantum-Coherent Thermodynamics: Leaf Typicality via Minimum-Variance Foliation
Maurizio Fagotti
Equilibrium statistical ensembles commute with the Hamiltonian and thus carry no coherence in the energy eigenbasis. We develop a framework in which energy fluctuations can retain…
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…
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…
Asymptotic behaviour of determinants through the expansion of the Moyal star product
Maurizio Fagotti, Vanja MariÄ
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 t…