Cited by 40Quantum many-body systemsQuantum Computing Algorithms and ArchitectureCold Atom Physics and Bose-Einstein Condensates

Parallel time-dependent variational principle algorithm for matrix product states

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Secular, Paul, Gourianov, Nikita, Lubasch, Michael, Dolgov, Sergey, Clark, Stephen R., Jaksch, Dieter·2020·Physical Review B

Abstract

Combining the time-dependent variational principle (TDVP) algorithm with the parallelization scheme introduced by Stoudenmire and White for the density matrix renormalization group (DMRG), we present the first parallel matrix product state (MPS) algorithm capable of time evolving one-dimensional (1D) quantum lattice systems with long-range interactions. We benchmark the accuracy and performance of the algorithm by simulating quenches in the long-range Ising and XY models. We show that our code scales well up to 32 processes, with parallel efficiencies as high as $86%$. Finally, we calculate the dynamical correlation function of a 201-site Heisenberg XXX spin chain with $1/{r}^{2}$ interactions, which is challenging to compute sequentially. These results pave the way for the application of tensor networks to increasingly complex many-body systems.

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Research works printed but not linked: 4

  1. [27]27. J. Schachenmayer, Dynamics and long-range interactions in 1d quantum systems, Diploma thesis, Technische Universität München, 2008.
  2. [88]88. See Supplemental Material at http://link.aps.org/ supplemental/10.1103/PhysRevB.101.235123 for a comparison of different methods of approximating power laws by sums of exponentials, as well as details of our numerical experiments.
  3. [141]141. D. A. Abanin, E. Altman, I. Bloch, and M. Serbyn, Collo- quium: Many-body localization, thermalization, and entangle- ment, Rev. Mod. Phys. 91, 021001 (2019).
  4. [153]153. M. Lubasch, P. Moinier, and D. Jaksch, Multigrid renormal- ization, J. Comput. Phys. 372, 587 (2018).

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Authors
Secular, P., Gourianov, N., Lubasch, M., Dolgov, S., Clark, S. R., & Jaksch, D.
Affiliations
  • University of Bath (GB)
  • University of Oxford (GB)
  • University of Bristol (GB)
  • Centre for Quantum Technologies (SG)
Venue
Physical Review B
Published
2020-06-05
Volume
101
Issue
23
ISSN
  • 2469-9950 (ISSN-L)
  • 2469-9969
OpenAlex
W3033248898
Cited by
40
References
148
Citations by year
2026: 3 · 2025: 4 · 2024: 12 · 2023: 5 · 2022: 6 · 2021: 6 · 2020: 4
FWCI
2.14
Type
journal article
Language
en
Open access
Locations
  • Physical review. B./Physical review. B (publishedVersion)
  • Bristol Research (University of Bristol) (publishedVersion, other-oa)
  • arXiv (Cornell University) (acceptedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Explore Bristol Research (submittedVersion, other-oa)
  • arXiv (Cornell University)
Funders
Engineering and Physical Sciences Research Council (EP/M013243/1, EP/K038311/1, EP/P01058X/1, EP/P025110/2)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
Keywords
time-dependent variational principle, matrix product states, parallel algorithms, long-range interactions, quantum lattice models, quench dynamics, long-range Ising model, dynamical correlation functions, tensor networks, parallel efficiency

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