Microscopic origin of the quantum Mpemba effect in integrable systems

C Rylands, K Klobas, F Ares, P Calabrese… - Physical Review Letters, 2024 - APS
The highly complicated nature of far from equilibrium systems can lead to a complete
breakdown of the physical intuition developed in equilibrium. A famous example of this is the …

Nonequilibrium full counting statistics and symmetry-resolved entanglement from space-time duality

B Bertini, P Calabrese, M Collura, K Klobas… - Physical Review Letters, 2023 - APS
Owing to its probabilistic nature, a measurement process in quantum mechanics produces a
distribution of possible outcomes. This distribution—or its Fourier transform known as full …

Dynamics of charge fluctuations from asymmetric initial states

B Bertini, K Klobas, M Collura, P Calabrese, C Rylands - Physical Review B, 2024 - APS
Conserved-charge densities are very special observables in quantum many-body systems
as, by construction, they encode information about the dynamics. Therefore, their evolution …

Growth of Rényi entropies in interacting integrable models and the breakdown of the quasiparticle picture

B Bertini, K Klobas, V Alba, G Lagnese, P Calabrese - Physical Review X, 2022 - APS
Rényi entropies are conceptually valuable and experimentally relevant generalizations of
the celebrated von Neumann entanglement entropy. After a quantum quench in a clean …

Correlation functions and transport coefficients in generalised hydrodynamics

J De Nardis, B Doyon, M Medenjak… - Journal of Statistical …, 2022 - iopscience.iop.org
We review the recent advances on exact results for dynamical correlation functions at large
scales and related transport coefficients in interacting integrable models. We discuss Drude …

Exact thermalization dynamics in the “Rule 54” quantum cellular automaton

K Klobas, B Bertini, L Piroli - Physical Review Letters, 2021 - APS
We study the out-of-equilibrium dynamics of the quantum cellular automaton known as “Rule
54.” For a class of low-entangled initial states, we provide an analytic description of the effect …

Integrable spin chains and cellular automata with medium-range interaction

T Gombor, B Pozsgay - Physical Review E, 2021 - APS
We study integrable spin chains and quantum and classical cellular automata with
interaction range ℓ≥ 3. This is a family of integrable models for which there was no general …

Integrable spin chain with Hilbert space fragmentation and solvable real-time dynamics

B Pozsgay, T Gombor, A Hutsalyuk, Y Jiang, L Pristyák… - Physical Review E, 2021 - APS
We revisit the so-called folded XXZ model, which was treated earlier by two independent
research groups. We argue that this spin-1/2 chain is one of the simplest quantum integrable …

Entanglement dynamics in Rule 54: Exact results and quasiparticle picture

K Klobas, B Bertini - SciPost Physics, 2021 - scipost.org
We study the entanglement dynamics generated by quantum quenches in the quantum
cellular automaton Rule 54. We consider the evolution from a recently introduced class of …

Rule 54: Exactly solvable model of nonequilibrium statistical mechanics

B Buča, K Klobas, T Prosen - Journal of Statistical Mechanics …, 2021 - iopscience.iop.org
We review recent results on an exactly solvable model of nonequilibrium statistical
mechanics, specifically the classical rule 54 reversible cellular automaton and some of its …