Quantum simulators, phase transitions, resonant tunneling, and variances: A many-body perspective

A. U.J. Lode, O. E. Alon, J. Arnold, A. Bhowmik, M. Büttner, L. S. Cederbaum, B. Chatterjee, R. Chitra, S. Dutta, C. Georges, A. Hemmerich, H. Keßler, J. Klinder, C. Lévêque, R. Lin, P. Molignini, F. Schäfer, J. Schmiedmayer, M. Žonda

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


This 2021 report summarizes our activities at the HLRS facilities Hawk and Hazel Hen in the framework of the multiconfigurational time-dependent Hartree for indistinguishable particles (MCTDH-X) high-performance computation project. Our results are a bottom-up investigation into exciting and intriguing many-body physics and phase diagrams obtained via the direct solution of the Schrödinger equation and its comparison to experiments, and via machine learning approaches.We investigated ultracold-boson quantum simulators for crystallization and superconductors in a magnetic field, the phase transitions of ultracold bosons interacting with a cavity and of charged fermions in lattices described by the Falicov-Kimball model. Moreover, we report exciting findings on the many-body dynamics of tunneling and variances, in two and three-dimensional ultracold-boson systems, respectively.

Original languageEnglish
Title of host publicationHigh Performance Computing in Science and Engineering '21
Subtitle of host publicationTransactions of the High Performance Computing Center, Stuttgart (HLRS) 2021
PublisherSpringer International Publishing
Number of pages25
ISBN (Electronic)9783031179372
ISBN (Print)9783031179365
StatePublished - 1 Jan 2023

Bibliographical note

Publisher Copyright:
© The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

ASJC Scopus subject areas

  • General Computer Science
  • General Physics and Astronomy


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