Precision Many-Body Physics V: New Algorithms

Presentations

• High-order diagrammatic expansion around BCS: Polarized superfluid phase of the attractive Hubbard model

  ORAL · Invited

  March 16, 2022, 9:00 AM – March 16, 2022, 9:36 AM

  Publication: G. Spada, R. Rossi, F. Simkovic, R. Garioud, M. Ferrero, K. Van Houcke, F. Werner, arXiv:2103.12038<br>

  Presenters

  • Félix Werner

    Ecole Normale Superieure

  Authors

  • Félix Werner

    Ecole Normale Superieure

  • Gabriele Spada

    Universita di Trento

  • Riccardo Rossi

    Ecole Polytechnique Federale de Lausanne

  • Fedor Simkovic

    Ecole Polytechnique

  • Renaud Garioud

    Ecole Polytechnique

  • Michel Ferrero

    Ecole Polytechnique, École Polytechnique, École Polytechnique, Palaiseau

  • Kris Van Houcke

    Ecole Normale Superieure

  View abstract →

• Isometric Tensor Network States on an Infinite Stripe

  ORAL

  March 16, 2022, 9:36 AM – March 16, 2022, 9:48 AM

  Presenters

  • Sajant Anand

    University of California, Berkeley

  Authors

  • Yantao Wu

    University of California, Berkeley

  • Sajant Anand

    University of California, Berkeley

  • Sheng-Hsuan Lin

    Technical University of Munich

  • Michael P Zaletel

    University of California, Berkeley, University of California at Berkeley

  View abstract →

• Massively parallel exact diagonalization with symmetries and minimal communication

  ORAL

  March 16, 2022, 9:48 AM – March 16, 2022, 10:00 AM

  Presenters

  • Benedikt Kloss

    Flatiron Institute

  Authors

  • Benedikt Kloss

    Flatiron Institute

  View abstract →

• New formalism for the exact calculation of total energies and associated electronic states of many-body interactions with complexity n⁴

  ORAL

  March 16, 2022, 10:00 AM – March 16, 2022, 10:12 AM

  Publication: Planned to be submitted to Arxiv in December.

  Presenters

  • Thierry Deutsch

    CEA IRIG/MEM

  Authors

  • Thierry Deutsch

    CEA IRIG/MEM

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• Floating point precision imaginary time response functions in quantum many-body physics

  ORAL

  March 16, 2022, 10:12 AM – March 16, 2022, 10:24 AM

  Publication: Legendre-spectral Dyson equation solver with super-exponential convergence, <br>Xinyang Dong, Dominika Zgid, Emanuel Gull, and Hugo U. R. Strand, <br>J. Chem. Phys. 152, 134107 (2020), <br>https://doi.org/10.1063/5.0003145<br><br>libdlr: Efficient imaginary time calculations using the discrete Lehmann representation, <br>Jason Kaye, Hugo U. R. Strand, <br>https://arxiv.org/abs/2110.06765<br><br>A fast time domain solver for the equilibrium Dyson equation, <br>Jason Kaye, Hugo U. R. Strand, <br>https://arxiv.org/abs/2110.06120

  Presenters

  • Hugo Strand

    Örebro University, Sweden

  Authors

  • Hugo Strand

    Örebro University, Sweden

  • Xinyang Dong

    University of Michigan, Ann Arbor

  • Emanuel C Gull

    University of Michigan

  • Dominika Zgid

    University of Michigan

  • Jason Kaye

    Center for Computational Mathematics, Flatiron Institute, New York

  View abstract →

• Interaction expansion inchworm Monte Carlo

  ORAL

  March 16, 2022, 10:24 AM – March 16, 2022, 10:36 AM

  Presenters

  • Yang Yu

    University of Michigan

  Authors

  • Yang Yu

    University of Michigan

  • Jia Li

    University of Michigan

  • Guy Cohen

    Tel Aviv University

  • Emanuel C Gull

    University of Michigan

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• Probingtopologicalspinliquids on a programmable quantum simulator

  ORAL · Invited

  March 16, 2022, 10:36 AM – March 16, 2022, 11:12 AM

  Presenters

  • Giulia Semeghini

    Harvard University, Univ Degli Studi di Firenze

  Authors

  • Giulia Semeghini

    Harvard University, Univ Degli Studi di Firenze

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• Gaussian Fermionic Matrix Product States for generalized Hartree-Fock in quasi-1D systems

  ORAL

  March 16, 2022, 11:12 AM – March 16, 2022, 11:24 AM

  Publication: "Linear-time algorithm for generalized Hartree-Fock in quasi-one-dimensional systems", by Alex Meiburg and Bela Bauer, in preparation.

  Presenters

  • Alexander H Meiburg

    University of California, Santa Barbara

  Authors

  • Alexander H Meiburg

    University of California, Santa Barbara

  • Bela Bauer

    Microsoft Corp

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• Sparse-modeling solver for dynamical two-particle response of correlated electrons

  ORAL

  March 16, 2022, 11:24 AM – March 16, 2022, 11:36 AM

  Presenters

  • Hiroshi Shinaoka

    Saitama Univ

  Authors

  • Hiroshi Shinaoka

    Saitama Univ

  • Markus Wallerberger

    Vienna Univ of Technology

  • Anna Kauch

    Vienna Univ of Technology

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• Dynamical Variational Monte Carlo as a quantum impurity solver

  ORAL

  March 16, 2022, 11:36 AM – March 16, 2022, 11:48 AM

  Presenters

  • Peter Rosenberg

    Université de Sherbrooke, Département de Physique & Institut Quantique, Université de Sherbrooke, Québec, Canada J1K 2R1

  Authors

  • Peter Rosenberg

    Université de Sherbrooke, Département de Physique & Institut Quantique, Université de Sherbrooke, Québec, Canada J1K 2R1

  • Maxime Charlebois

    Université du Québec à Trois-Rivières

  • André-Marie Tremblay

    Université de Sherbrooke

  • David Sénéchal

    Université de Sherbrooke

  View abstract →

• Self-Consistent Ab Initio Embedding Results for Real Materials

  ORAL

  March 16, 2022, 11:48 AM – March 16, 2022, 12:00 PM

  Presenters

  • Runxue Yu

    University of Michigan

  Authors

  • Runxue Yu

    University of Michigan

  • Chia-Nan Yeh

    University of Michigan, Ann Arbor, University of Michigan

  • Yanbing Zhou

    University of Michigan

  • Emanuel C Gull

    University of Michigan

  • Dominika Zgid

    University of Michigan

  View abstract →