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Numerically-Exact Schrödinger Dynamics of Closed and Open Many-Boson Systems with the MCTDHB Package

  • Axel U. J. Lode
  • Kaspar Sakmann
  • Rostislav A. Doganov
  • Julian Grond
  • Ofir E. Alon
  • Alexej I. Streltsov
  • Lorenz S. Cederbaum
Conference paper

Abstract

The quantum many-body dynamics of indistinguishable, interacting particles are described by the time-dependent many-body Schrödinger equation (TDSE). The TDSE constitutes a difficult problem and is not solvable analytically in most cases. The present review article expedites and benchmarks the capabilities of a novel theoretical method, the multiconfigurational time-dependent Hartree method for bosons (MCTDHB) that is designed for solving the TDSE of interacting bosonic particles. The MCTDHB package is a software implementation that solves the equations of motion of MCTDHB numerically. It is assessed with a benchmark versus an analytically treatable model of trapped interacting bosons (a closed system) that the MCTDHB is capable of solving the TDSE for bosons numerically exactly, i.e., to any desired numerical precision. Furthermore, the structure and parallelization of the MCTDHB package as well as an application to the tunneling to open space dynamics [Proc. Natl. Acad. Sci. USA, 109, 13521 (2012)] are discussed.

Keywords

OpenMP Directive Memory Parallelization Intel Math Kernel Library Distribute Memory Parallelization Open Space Dynamic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Axel U. J. Lode
    • 1
  • Kaspar Sakmann
    • 2
  • Rostislav A. Doganov
    • 4
  • Julian Grond
    • 1
  • Ofir E. Alon
    • 3
  • Alexej I. Streltsov
    • 1
  • Lorenz S. Cederbaum
    • 1
  1. 1.Theoretische Chemie, Physikalisch-Chemisches InstitutUniversität HeidelbergHeidelbergGermany
  2. 2.Department of PhysicsStanford UniversityStanfordUSA
  3. 3.Department of PhysicsUniversity of Haifa at OranimTivonIsrael
  4. 4.Department of PhysicsÖzyilmaz Group, National University of SingaporeSingaporeSingapore

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