Quantum many-body scars: A quasiparticle perspective

A Chandran, T Iadecola, V Khemani… - Annual Review of …, 2023 - annualreviews.org
Weakly interacting quasiparticles play a central role in the low-energy description of many
phases of quantum matter. At higher energies, however, quasiparticles cease to be well …

Quantum many-body scars and Hilbert space fragmentation: a review of exact results

S Moudgalya, BA Bernevig… - Reports on Progress in …, 2022 - iopscience.iop.org
The discovery of quantum many-body scars (QMBS) both in Rydberg atom simulators and in
the Affleck–Kennedy–Lieb–Tasaki spin-1 chain model, have shown that a weak violation of …

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 …

Hilbert space fragmentation and commutant algebras

S Moudgalya, OI Motrunich - Physical Review X, 2022 - APS
We study the phenomenon of Hilbert space fragmentation in isolated Hamiltonian and
Floquet quantum systems using the language of commutant algebras, the algebra of all …

Probing quantum scars and weak ergodicity breaking through quantum complexity

B Bhattacharjee, S Sur, P Nandy - Physical Review B, 2022 - APS
Scar states are special many-body eigenstates that weakly violate the eigenstate
thermalization hypothesis (ETH). Using the explicit formalism of the Lanczos algorithm …

Many-body Hilbert space scarring on a superconducting processor

P Zhang, H Dong, Y Gao, L Zhao, J Hao, JY Desaules… - Nature Physics, 2023 - nature.com
Quantum many-body scarring (QMBS) is a recently discovered form of weak ergodicity
breaking in strongly interacting quantum systems, which presents opportunities for mitigating …

Weak ergodicity breaking in the Schwinger model

JY Desaules, D Banerjee, A Hudomal, Z Papić, A Sen… - Physical Review B, 2023 - APS
As a paradigm of weak ergodicity breaking in disorder-free nonintegrable models, quantum
many-body scars (QMBS) can offer deep insights into the thermalization dynamics of gauge …

Enhanced many-body quantum scars from the non-Hermitian Fock skin effect

R Shen, F Qin, JY Desaules, Z Papić, CH Lee - Physical Review Letters, 2024 - APS
In contrast with extended Bloch waves, a single particle can become spatially localized due
to the so-called skin effect originating from non-Hermitian pum**. Here we show that in …

Emergent U(1) lattice gauge theory in Rydberg atom arrays

Y Cheng, H Zhai - Nature Reviews Physics, 2024 - nature.com
Rydberg atom arrays have emerged as a novel platform exhibiting rich quantum many-body
physics and offering promise for universal quantum computation. The Rydberg blockade …

Algebraic theory of quantum synchronization and limit cycles under dissipation

B Buča, C Booker, D Jaksch - SciPost Physics, 2022 - scipost.org
Synchronization is a phenomenon where interacting particles lock their motion and display
non-trivial dynamics. Despite intense efforts studying synchronization in systems without …