Výsledky vyhledávání - "D. J. M. Ahmed-Braun"

Akademický článek

Nonequilibrium dynamics and atom-pair coherence in strongly interacting Bose-Fermi mixtures

Autor: J. van de Kraats, D. J. M. Ahmed-Braun, V. E. Colussi, S. J. J. M. F. Kokkelmans

Publikováno v: Physical Review Research, Vol 6, Iss 4, p 043016 (2024)

Theoretical treatments of nonequilibrium dynamics in strongly interacting Bose-Fermi mixtures are complicated by the inherent non-Gaussian nature of the vacuum two-body physics, invalidating the typical Hartree-Fock-Bogoliubov approximation. Here we

Externí odkaz: https://doaj.org/article/8a8620be1aab49428d7abbf63350c65b

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Akademický článek

Resonance triplet dynamics in the quenched unitary Bose gas

Autor: J. van de Kraats, D. J. M. Ahmed-Braun, V. E. Colussi, S. J. J. M. F. Kokkelmans

Publikováno v: Physical Review Research, Vol 6, Iss 1, p L012056 (2024)

The quenched unitary Bose gas is a paradigmatic example of a strongly interacting out-of-equilibrium quantum system, whose dynamics become difficult to describe theoretically due to the growth of non-Gaussian quantum correlations. We develop a conser

Externí odkaz: https://doaj.org/article/e031dd5f73f0418db15f7ee105a561d9

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Efimovian three-body potential from broad to narrow Feshbach resonances

Autor: J. van de Kraats, D. J. M. Ahmed-Braun, J.-L. Li, S. J. J. M. F. Kokkelmans

Publikováno v: Physical Review A, 107(2):023301. American Physical Society
arXiv, 2022:2210.14200. Cornell University Library

We analyse the change in the hyperradial Efimovian three-body potential as the two-body interaction is tuned from the broad to narrow Feshbach resonance regime. Here, it is known from both theory and experiment that the three-body dissociation scatte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efce36469cab17652e12920aca6ac3e1
https://doi.org/10.1103/PhysRevA.107.023301

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Evolution of the unitary Bose gas for broad to narrow Feshbach resonances

Autor: D. J. M. Ahmed-Braun, S. Musolino, V. E. Colussi, S. J. J. M. F. Kokkelmans

Publikováno v: Physical Review A, 106(1):013315. American Physical Society
arXiv, 2022:2202.05109. Cornell University Library

We study the post-quench dynamics of unitary Bose gases using a two-channel model, focusing on the effect of variations in the width of the Feshbach resonance due to density changes. We generally find that increasing the density leads to a correspond

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09971c97a64ca2459bbeafe4d03cc53d
https://arxiv.org/abs/2202.05109

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Multichannel effects in the Efimov regime from broad to narrow Feshbach resonances

Autor: P. M. A. Mestrom, Servaas Kokkelmans, D. J. M. Ahmed-Braun, T. Secker

Publikováno v: Physical Review A, 103(5):052805. American Physical Society
arXiv, 2020:2011.14332. Cornell University Library

We study Efimov physics of three identical bosons with pairwise multichannel interactions for Feshbach resonances of adjustable width. We find that the two-body multichannel nature of the interaction can affect the universal three-body spectrum, espe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6e47ea337e80c4fb2e548f0e32af699
https://research.tue.nl/nl/publications/30b7357c-15df-4380-a580-cfcf0e63117e

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