Details
| Original language | English |
|---|---|
| Article number | 044401 |
| Number of pages | 16 |
| Journal | AVS Quantum Science |
| Volume | 5 |
| Issue number | 4 |
| Early online date | 7 Nov 2023 |
| Publication status | Published - Dec 2023 |
Abstract
We present a highly efficient method for the numerical solution of coupled Gross-Pitaevskii equations describing the evolution dynamics of a multi-species mixture of Bose-Einstein condensates in time-dependent potentials. This method, based on a moving and expanding reference frame, compares favorably to a more standard but much more computationally expensive solution based on a frozen frame. It allows an accurate description of the long-time behavior of interacting, multi-species quantum mixtures including the challenging problem of long free expansions relevant to microgravity and space experiments. We demonstrate a successful comparison to experimental measurements of a binary Rb-K mixture recently performed with the payload of a sounding rocket experiment.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Networks and Communications
- Chemistry(all)
- Physical and Theoretical Chemistry
- Computer Science(all)
- Computational Theory and Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
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In: AVS Quantum Science, Vol. 5, No. 4, 044401, 12.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Efficient numerical description of the dynamics of interacting multispecies quantum gases
AU - Pichery, Annie
AU - Meister, Matthias
AU - Piest, Baptist
AU - Böhm, Jonas
AU - Rasel, Ernst Maria
AU - Charron, Eric
AU - Gaaloul, Naceur
N1 - Funding Information: The authors thank Gabriel Müller for his atom chip simulations and input of the trap configurations used in this paper. This work was funded by the Deutsche Forschungsgemeinschaft (German Research Foundation) under Germany's Excellence Strategy (EXC-2123 QuantumFrontiers Grant No. 390837967) and through CRC 1227 (DQ-mat) within Projects No. A05, and the German Space Agency (DLR) with funds provided by the German Federal Ministry of Economic Affairs and Energy [German Federal Ministry of Education and Research (BMBF)] due to an enactment of the German Bundestag under Grant Nos. 50WM2250A (QUANTUS plus), 50WP1700 (BECCAL), 50WM2245A (CAL-II), 50WM2263A (CARIOQA-GE), 50WM2253A (AI-Quadrat), 50RK1957 (QGYRO), 50NA2106 (QGYRO+), and 50WP1431-1435 (QUANTUS-IV-MAIUS). A.P. and E.C. acknowledge support by the “ADI 2019” project funded by the IDEX Paris-Saclay, ANR-11-IDEX-0003-02. HPC resources from the “Mésocentre” computing center of CentraleSupélec, École Normale Supérieure Paris-Saclay and Université Paris-Saclay was supported by CNRS and Région Île-de-France ( https://mesocentre.universite-paris-saclay.fr/ ).
PY - 2023/12
Y1 - 2023/12
N2 - We present a highly efficient method for the numerical solution of coupled Gross-Pitaevskii equations describing the evolution dynamics of a multi-species mixture of Bose-Einstein condensates in time-dependent potentials. This method, based on a moving and expanding reference frame, compares favorably to a more standard but much more computationally expensive solution based on a frozen frame. It allows an accurate description of the long-time behavior of interacting, multi-species quantum mixtures including the challenging problem of long free expansions relevant to microgravity and space experiments. We demonstrate a successful comparison to experimental measurements of a binary Rb-K mixture recently performed with the payload of a sounding rocket experiment.
AB - We present a highly efficient method for the numerical solution of coupled Gross-Pitaevskii equations describing the evolution dynamics of a multi-species mixture of Bose-Einstein condensates in time-dependent potentials. This method, based on a moving and expanding reference frame, compares favorably to a more standard but much more computationally expensive solution based on a frozen frame. It allows an accurate description of the long-time behavior of interacting, multi-species quantum mixtures including the challenging problem of long free expansions relevant to microgravity and space experiments. We demonstrate a successful comparison to experimental measurements of a binary Rb-K mixture recently performed with the payload of a sounding rocket experiment.
UR - http://www.scopus.com/inward/record.url?scp=85176270551&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2305.13433
DO - 10.48550/arXiv.2305.13433
M3 - Article
AN - SCOPUS:85176270551
VL - 5
JO - AVS Quantum Science
JF - AVS Quantum Science
IS - 4
M1 - 044401
ER -