Quantum many-body scars and weak breaking of ergodicity

M Serbyn, DA Abanin, Z Papić - Nature Physics, 2021 - nature.com
Thermalization is the inevitable fate of many complex quantum systems, whose dynamics
allow them to fully explore the vast configuration space regardless of the initial state—the …

Exponentially accelerated approach to stationarity in Markovian open quantum systems through the Mpemba effect

F Carollo, A Lasanta, I Lesanovsky - Physical Review Letters, 2021 - APS
Ergodicity breaking and slow relaxation are intriguing aspects of nonequilibrium dynamics
both in classical and quantum settings. These phenomena are typically associated with …

Unifying emergent hydrodynamics and lindbladian low-energy spectra across symmetries, constraints, and long-range interactions

O Ogunnaike, J Feldmeier, JY Lee - Physical Review Letters, 2023 - APS
We identify emergent hydrodynamics governing charge transport in Brownian random time
evolution with various symmetries, constraints, and ranges of interactions. This is …

Weak ergodicity breaking through the lens of quantum entanglement

Z Papić - Entanglement in Spin Chains: From Theory to Quantum …, 2022 - Springer
Recent studies of interacting systems of quantum spins, ultracold atoms, and correlated
fermions have shed a new light on how isolated many-body systems can avoid rapid …

Correspondence principle for many-body scars in ultracold Rydberg atoms

CJ Turner, JY Desaules, K Bull, Z Papić - Physical Review X, 2021 - APS
The theory of quantum scarring—a remarkable violation of quantum unique ergodicity—
rests on two complementary pillars: the existence of unstable classical periodic orbits and …

Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models

P Brighi, M Ljubotina, M Serbyn - SciPost Physics, 2023 - scipost.org
Quantum kinetically constrained models have recently attracted significant attention due to
their anomalous dynamics and thermalization. In this work, we introduce a hitherto …

Localized dynamics in the Floquet quantum East model

B Bertini, P Kos, T Prosen - Physical review letters, 2024 - APS
We introduce and study the discrete-time version of the quantum East model, an interacting
quantum spin chain inspired by simple kinetically constrained models of classical glasses …

Multifractality meets entanglement: Relation for nonergodic extended states

G De Tomasi, IM Khaymovich - Physical Review Letters, 2020 - APS
In this work, we establish a relation between entanglement entropy and fractal dimension D
of generic many-body wave functions, by generalizing the result of Page [Phys. Rev. Lett. 71 …

Hypergrid subgraphs and the origin of scarred quantum walks in many-body Hilbert space

JY Desaules, K Bull, A Daniel, Z Papić - Physical Review B, 2022 - APS
Following the recent observation of wave function revivals in large Rydberg atom quantum
simulators, much effort has focused on understanding the emergence of many-body scars in …

Enhanced many-body localization in a kinetically constrained model

K Royen, S Mondal, F Pollmann, F Heidrich-Meisner - Physical Review E, 2024 - APS
In the study of the thermalization of closed quantum systems, the role of kinetic constraints
on the temporal dynamics and the eventual thermalization is attracting significant interest …