The DOI matches its Crossref record; 200 of the 200 references it cites were found in a registry or an index.
Quantum many-body scars and Hilbert space fragmentation: a review of exact results
Open accessAbstract
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 ergodicity can still lead to rich experimental and theoretical physics. In this review, we provide a pedagogical introduction to and an overview of the exact results on weak ergodicity breaking via QMBS in isolated quantum systems with the help of simple examples such as the fermionic Hubbard model. We also discuss various mechanisms and unifying formalisms that have been proposed to encompass the plethora of systems exhibiting QMBS. We cover examples of equally-spaced towers that lead to exact revivals for particular initial states, as well as isolated examples of QMBS. Finally, we review Hilbert space fragmentation, a related phenomenon where systems exhibit a richer variety of ergodic and non-ergodic behaviors, and discuss its connections to QMBS.
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Cites
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Cited by
Finding Periodic Orbits in Projected Quantum Many-Body Dynamics
Petrova, E., Ljubotina, M., Yalnız, G., & Serbyn, M. (2025) · PRX Quantum · doi:10.1103/tldp-kvkd · Cited by 2
Metadata
- Authors
- Moudgalya, S., Bernevig, B. A., & Regnault, N.
- Venue
- Reports on Progress in Physics
- Publisher
- IOP Publishing
- Published
- 2022-07-01
- Volume
- 85
- Issue
- 8
- Pages
- 086501
- ISSN
- 0034-4885 (ISSN-L)
- 1361-6633
- OpenAlex
- W3196716344
- Cited by
- 431
- References
- 200
- FWCI
- 37.39
- Type
- journal article
- Language
- en
- Open access
- hybrid
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