Cited by 122Quantum many-body systemsTheoretical and Computational PhysicsCold Atom Physics and Bose-Einstein Condensates

Persistence of Locality in Systems with Power-Law Interactions

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Gong, Zhe-Xuan, Foss-Feig, Michael, Michalakis, Spyridon, Gorshkov, Alexey V.·2014·Physical Review Letters

Abstract

Motivated by recent experiments with ultracold matter, we derive a new bound on the propagation of information in D-dimensional lattice models exhibiting 1/r^{α} interactions with α>D. The bound contains two terms: One accounts for the short-ranged part of the interactions, giving rise to a bounded velocity and reflecting the persistence of locality out to intermediate distances, whereas the other contributes a power-law decay at longer distances. We demonstrate that these two contributions not only bound but, except at long times, qualitatively reproduce the short- and long-distance dynamical behavior following a local quench in an XY chain and a transverse-field Ising chain. In addition to describing dynamics in numerous intractable long-range interacting lattice models, our results can be experimentally verified in a variety of ultracold-atomic and solid-state systems.

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  • Two MPS with different bond dimensions do not belong to the same manifold, so this cannot easily be captured in a smooth differential equation.

    “As two MPS with different bond dimensions do not belong to the same manifold [35], this idea cannot easily be captured in a smooth evolution described using a differential equation.”

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Research works printed but not linked: 2

  1. B. Nachtergaele and R. Sims, arXiv:1004.2086. · arXiv
  2. See Supplemental Material at http://link.aps.org/ supplemental/10.1103/PhysRevLett.113.030602 for the generalization of our main result Eq. (2) to 2D and 3D lattices.

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Authors
Gong, Z.-X., Foss-Feig, M., Michalakis, S., & Gorshkov, A. V.
Affiliations
  • California Institute of Technology (US)
  • Joint Quantum Institute (US)
Venue
Physical Review Letters
Published
2014-07-16
Volume
113
Issue
3
Pages
030602-030602
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1997288266
Cited by
122
References
40
Citations by year
2026: 4 · 2025: 1 · 2024: 4 · 2023: 5 · 2022: 8 · 2021: 10 · 2020: 17 · 2019: 19 · 2018: 12 · 2017: 14 · 2016: 13 · 2015: 11 · 2014: 4
FWCI
6.97
Type
journal article
Language
en
Open access
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (acceptedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • arXiv (Cornell University)
Funders
National Science Foundation (GBMF1250)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Theoretical and Computational Physics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
Keywords
locality, long-range interactions, power-law interactions, information dissemination, ultracold atoms, XY chain, transverse-field Ising chain, local quench, lattice dynamics

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