Zobrazeno 1 - 10
of 16
pro vyhledávání: '"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
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
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023103 (2022)
Quantifying the nonuniversal three-body losses in ultracold atomic gases has been a long-standing problem. We go beyond earlier approaches to solve this problem by using a model that includes realistic pairwise interaction potentials and the exact th
Externí odkaz:
https://doaj.org/article/1feeaa634c624fb1b441abd41eb7c8bb
Publikováno v:
Physical Review A, 107(2):023301. American Physical Society
arXiv, 2022:2210.14200. Cornell University Library
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
https://doi.org/10.1103/PhysRevA.107.023301
Publikováno v:
arXiv, 2021:2102.01781. Cornell University Library
AVS Quantum Science, 4(1):013803. American Institute of Physics
AVS Quantum Science, 4(1):013803. American Institute of Physics
This work studies the variational quantum eigensolver algorithm, designed to determine the ground state of a quantum mechanical system by combining classical and quantum hardware. Methods of reducing the number of required qubit manipulations, prone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cd4c0a8798f3a2ede4370466fadfbcf
https://doi.org/10.1116/5.0076435
https://doi.org/10.1116/5.0076435
Publikováno v:
Physical Review A, 106(1):013315. American Physical Society
arXiv, 2022:2202.05109. Cornell University Library
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
https://arxiv.org/abs/2202.05109
Publikováno v:
Physical Review Research, 4(2):023103. American Physical Society
arXiv, 2021:2107.11269. Cornell University Library
arXiv, 2021:2107.11269. Cornell University Library
We reveal a significant spin-exchange pathway in the three-body recombination process for ultracold lithium-7 atoms near a zero-crossing of the two-body scattering length. This newly discovered recombination pathway involves the exchange of spin betw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93db7cdd4eabb3c5997f82b3df98670b
http://arxiv.org/abs/2107.11269
http://arxiv.org/abs/2107.11269
Autor:
R M W van Bijnen, C Ravensbergen, D J Bakker, G J Dijk, S J J M F Kokkelmans, E J D Vredenbregt
Publikováno v:
New Journal of Physics, Vol 17, Iss 2, p 023045 (2015)
We demonstrate the ability to excite atoms at well-defined, programmable locations in a magneto-optical trap, either to the continuum (ionization), or to a Rydberg state. To this end, excitation laser light is shaped into arbitrary intensity patterns
Externí odkaz:
https://doaj.org/article/5ad85e3a4a46453c95ccf81c5fb81317
Autor:
T G, Tiecke, M R, Goosen, A, Ludewig, S D, Gensemer, S, Kraft, S J J M F, Kokkelmans, J T M, Walraven
Publikováno v:
Physical review letters. 104(5)
We study the widths of interspecies Feshbach resonances in a mixture of the fermionic quantum gases 6Li and 40K. We develop a model to calculate the width and position of all available Feshbach resonances for a system. Using the model, we select the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5a75f1210e51beb6c4479e23ec8793d2
https://pubmed.ncbi.nlm.nih.gov/20366760
https://pubmed.ncbi.nlm.nih.gov/20366760
Autor:
E, Wille, F M, Spiegelhalder, G, Kerner, D, Naik, A, Trenkwalder, G, Hendl, F, Schreck, R, Grimm, T G, Tiecke, J T M, Walraven, S J J M F, Kokkelmans, E, Tiesinga, P S, Julienne
Publikováno v:
Physical review letters. 100(5)
We report on the observation of Feshbach resonances in an ultracold mixture of two fermionic species, (6)Li and (40)K. The experimental data are interpreted using a simple asymptotic bound state model and full coupled channels calculations. This unam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::11687be1f598ccad4169db0f1fae6753
https://pubmed.ncbi.nlm.nih.gov/18352370
https://pubmed.ncbi.nlm.nih.gov/18352370