Quantum many-body scar states with emergent kinetic constraints and finite-entanglement revivals

T Iadecola, M Schecter - Physical Review B, 2020 - APS
We construct a set of exact, highly excited eigenstates for a nonintegrable spin-1/2 model in
one dimension that is relevant to experiments on Rydberg atoms in the antiblockade regime …

Unified structure for exact towers of scar states in the Affleck-Kennedy-Lieb-Tasaki and other models

DK Mark, CJ Lin, OI Motrunich - Physical Review B, 2020 - APS
Quantum many-body scar states are many-body states with finite energy density in non-
integrable models that do not obey the eigenstate thermalization hypothesis. Recent works …

Systematic construction of scarred many-body dynamics in 1d lattice models

K Bull, I Martin, Z Papić - Physical review letters, 2019 - APS
We introduce a family of nonintegrable 1D lattice models that feature robust periodic revivals
under a global quench from certain initial product states, thus generalizing the phenomenon …

Confined Phases of One-Dimensional Spinless Fermions Coupled to Gauge Theory

U Borla, R Verresen, F Grusdt, S Moroz - Physical Review Letters, 2020 - APS
We investigate a quantum many-body lattice system of one-dimensional spinless fermions
interacting with a dynamical Z 2 gauge field. The gauge field mediates long-range attraction …

Emergence of Hilbert space fragmentation in Ising models with a weak transverse field

A Yoshinaga, H Hakoshima, T Imoto, Y Matsuzaki… - Physical Review Letters, 2022 - APS
The transverse-field Ising model is one of the fundamental models in quantum many-body
systems, yet a full understanding of its dynamics remains elusive in higher than one …

Rydberg Platform for Nonergodic Chiral Quantum Dynamics

RJ Valencia-Tortora, N Pancotti, M Fleischhauer… - Physical Review Letters, 2024 - APS
We propose a mechanism for engineering chiral interactions in Rydberg atoms via a
directional antiblockade condition, where an atom can change its state only if an atom to its …

[HTML][HTML] Preparing quantum many-body scar states on quantum computers

EJ Gustafson, ACY Li, A Khan, J Kim… - Quantum, 2023 - quantum-journal.org
Quantum many-body scar states are highly excited eigenstates of many-body systems that
exhibit atypical entanglement and correlation properties relative to typical eigenstates at the …

Unitary and nonunitary quantum cellular automata with Rydberg arrays

TM Wintermantel, Y Wang, G Lochead, S Shevate… - Physical review …, 2020 - APS
We propose a physical realization of quantum cellular automata (QCA) using arrays of
ultracold atoms excited to Rydberg states. The key ingredient is the use of programmable …

Phonon-induced disorder in dynamics of optically pumped metals from nonlinear electron-phonon coupling

J Sous, B Kloss, DM Kennes, DR Reichman… - Nature …, 2021 - nature.com
The non-equilibrium dynamics of matter excited by light may produce electronic phases,
such as laser-induced high-transition-temperature superconductivity, that do not exist in …

Gauging the Kitaev chain

U Borla, R Verresen, J Shah, S Moroz - SciPost Physics, 2021 - scipost.org
We gauge the fermion parity symmetry of the Kitaev chain. While the bulk of the model
becomes an Ising chain of gauge-invariant spins in a tilted field, near the boundaries the …