Bunching, clustering, and the buildup of few-body correlations in a quenched unitary Bose gas

V. E. Colussi (Corresponding author), B.E. van Zwol, J.P. D'Incao, S. J. J. M. F. Kokkelmans

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademic

Uittreksel

We study the growth of two- and three-body correlations in an ultracold Bose gas quenched to unitarity. This is encoded in the dynamics of the two- and three-body contacts analyzed in this work. Via a set of relations connecting many-body correlations dynamics with few-body models, signatures of the Efimov effect are mapped out as a function of evolution time at unitarity over a range of atomic densities $n$. For the thermal resonantly interacting Bose gas, we find that atom-bunching leads to an enhanced growth of few-body correlations. These atom-bunching effects also highlight the interplay between few-body correlations that occurs before genuine many-body effects enter on Fermi timescales.
TaalEngels
Artikelnummer1901.10355v2
Aantal pagina's14
TijdschriftarXiv
StatusGepubliceerd - 29 jan 2019

Vingerafdruk

bunching
gases
atoms
signatures

Bibliografische nota

14 pages, 5 figures

Trefwoorden

  • cond-mat.quant-gas

Citeer dit

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Bunching, clustering, and the buildup of few-body correlations in a quenched unitary Bose gas. / Colussi, V. E. (Corresponding author); van Zwol, B.E.; D'Incao, J.P.; Kokkelmans, S. J. J. M. F.

In: arXiv, 29.01.2019.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademic

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AU - Kokkelmans,S. J. J. M. F.

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AB - We study the growth of two- and three-body correlations in an ultracold Bose gas quenched to unitarity. This is encoded in the dynamics of the two- and three-body contacts analyzed in this work. Via a set of relations connecting many-body correlations dynamics with few-body models, signatures of the Efimov effect are mapped out as a function of evolution time at unitarity over a range of atomic densities n. For the thermal resonantly interacting Bose gas, we find that atom-bunching leads to an enhanced growth of few-body correlations. These atom-bunching effects also highlight the interplay between few-body correlations that occurs before genuine many-body effects enter on Fermi timescales.

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