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Exploring Many-Body Physics with Bose-Einstein Condensates

In: High Performance Computing in Science and Engineering ' 18

Author

Listed:
  • O. E. Alon

    (University of Haifa, Department of Mathematics
    University of Haifa, Haifa Research Center for Theoretical Physics and Astrophysics)

  • V. S. Bagnato

    (University of São Paulo, São Carlos Institute of Physics)

  • R. Beinke

    (Universität Heidelberg, Theoretische Chemie, Physikalisch-Chemisches Institut)

  • S. Basu

    (Indian Institute of Technology Guwahati, Department of Physics)

  • L. S. Cederbaum

    (Universität Heidelberg, Theoretische Chemie, Physikalisch-Chemisches Institut)

  • B. Chakrabarti

    (Presidency University, Department of Physics)

  • B. Chatterjee

    (Indian Institute of Technology-Kanpur, Department of Physics)

  • R. Chitra

    (ETH Zürich, Institute for Theoretical Physics)

  • F. S. Diorico

    (Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien)

  • S. Dutta

    (Indian Institute of Technology Guwahati, Department of Physics)

  • L. Exl

    (University of Vienna, Wolfgang Pauli Institute c/o Faculty of Mathematics)

  • A. Gammal

    (Universidade de São Paulo, Instituto de Fisica)

  • S. K. Haldar

    (University of Haifa, Department of Mathematics
    University of Haifa, Haifa Research Center for Theoretical Physics and Astrophysics)

  • S. Klaiman

    (Universität Heidelberg, Theoretische Chemie, Physikalisch-Chemisches Institut)

  • C. Lévêque

    (Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien
    University of Vienna, Wolfgang Pauli Institute c/o Faculty of Mathematics)

  • R. Lin

    (ETH Zürich, Institute for Theoretical Physics)

  • N. J. Mauser

    (University of Vienna, Wolfgang Pauli Institute c/o Faculty of Mathematics)

  • P. Molignini

    (ETH Zürich, Institute for Theoretical Physics)

  • L. Papariello

    (ETH Zürich, Institute for Theoretical Physics)

  • R. Roy

    (Presidency University, Department of Physics)

  • K. Sakmann

    (Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien)

  • A. I. Streltsov

    (Universität Heidelberg, Theoretische Chemie, Physikalisch-Chemisches Institut
    Universität Kassel, Institut für Physik)

  • G. D. Telles

    (University of São Paulo, São Carlos Institute of Physics)

  • M. C. Tsatsos

    (University of São Paulo, São Carlos Institute of Physics)

  • R. Wu

    (Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien)

  • A. U. J. Lode

    (Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien
    University of Vienna, Wolfgang Pauli Institute c/o Faculty of Mathematics)

Abstract

Bose-Einstein condensates (BECs) offer a fruitful, often uncharted ground for exploring physics of many-particle systems. In the present year of the MCTDHB project at the HLRS, we maintained and extended our investigations of BECs and interacting bosonic systems using the MultiConfigurational Time-Dependent Hartree for Bosons (MCTDHB) method and running the MCTDHB and MCTDH-X software packages on the Cray XC40 system Hazel Hen. The results we disseminate within this report comprise: (i) Entropies and correlations of ultracold bosons in a lattice; (ii) Crystallization of bosons with dipole-dipole interactions and its detection in single-shot images; (iii) Management of correlations in ultracold gases; (iv) Pulverizing a BEC; (v) Dynamical pulsation of ultracold droplet crystals by laser light; (vi) Two-component bosons interacting with photons in a cavity; (vii) Quantum dynamics of a bosonic Josephson junction and the impact of the range of the interaction; (viii) Trapped bosons in the infinite-particle limit and their exact many-body wavefunction and properties; (ix) Angular-momentum conservation in a BEC and Gross-Pitaevskii versus many-body dynamics; (x) Variance of an anisotropic BEC; and (xi) excitation spectrum of a weakly-interacting rotating BEC showing enhanced many-body effects. These are all basic and appealing, sometimes unexpected many-body results put forward with the generous allocation of computer time by the HLRS to the MCTDHB project. Finally, expected future developments and research tasks are prescribed, too.

Suggested Citation

  • O. E. Alon & V. S. Bagnato & R. Beinke & S. Basu & L. S. Cederbaum & B. Chakrabarti & B. Chatterjee & R. Chitra & F. S. Diorico & S. Dutta & L. Exl & A. Gammal & S. K. Haldar & S. Klaiman & C. Lévêque, 2019. "Exploring Many-Body Physics with Bose-Einstein Condensates," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering ' 18, pages 89-110, Springer.
    • Handle: RePEc:spr:sprchp:978-3-030-13325-2_6
    DOI: 10.1007/978-3-030-13325-2_6
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