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

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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 correlation 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.
Originele taal-2Engels
Aantal pagina's13
TijdschriftPhysical Review A
Nummer van het tijdschrift4
StatusGepubliceerd - 4 apr 2019

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