Numerical Investigation of Strongly Interacting Bosons at Zero Temperature

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Show simple item record Forges de Parny, Laurent de Schäfer, Frank Mielke, Jonas Bastarrachea-Magnani, Miguel A. Buchleitner, Andreas 2019-04-09T13:34:28Z 2019-04-09T13:34:28Z 2019-04
dc.identifier.other 1668942488
dc.identifier.uri de_DE
dc.description.abstract We review some numerical works carried out within the department for Quantum Optics and Statistics at the University of Freiburg’s Institute of Physics, between September 2016 and June 2018. Our activities focus on quantum properties of matter at zero temperature, i.e., a regime where the thermal energy kBT is negligible with respect to the other energy scales of the considered system. This area of research, related to ultracold gases, has attracted a great deal of interest, both experimentally and theoretically, since the first realization of a Bose-Einstein condensate in 1995. In a context where the theoretical understanding of these systems still remains challenging, the growing power of computers offers a unique and efficient way to tackle such challenges. In our theory group, we particularly use powerful numerical methods that give exact results, in contrast to other theoretical approaches based on an a priori assumption, e.g., mean field theory. To illustrate it, we focus on few typical results that would not be available other than by using high performance computing. These results have been obtained by using three numerical methods: quantum Monte Carlo (QMC), Gutzwiller Monte Carlo (GMC), and the Multiconfigurational Time-dependent Hartree method for bosons (MCTDHX). en
dc.language.iso en de_DE
dc.publisher Universität Tübingen de_DE
dc.publisher Universität Tübingen de_DE
dc.subject.classification Hochleistungsrechnen de_DE
dc.subject.ddc 004 de_DE
dc.subject.other bwHPC Symposium de_DE
dc.subject.other Consensed Matter en
dc.subject.other Ultracold atoms en
dc.subject.other NEMO en
dc.title Numerical Investigation of Strongly Interacting Bosons at Zero Temperature en
dc.type InProceedings (Aufsatz / Paper einer Konferenz etc.) de_DE
utue.publikation.fachbereich Informatik de_DE
utue.publikation.fakultaet 7 Mathematisch-Naturwissenschaftliche Fakultät de_DE
utue.opus.portal bwhpc5 de_DE


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