Molecular production in a quenched unitary Bose gas

As the quenched unitary Bose gas evolves, the buildup of correlations leads to the formation of extended pairs bound purely by many-body effects, analogous to the phenomenon of Cooper pairing in the BCS regime of the Fermi gas\footnote{V. E. Colussi, S. Musolino, S. J. J. M. F. Kokkelmans, PRA 98, 051601(R) (2018)}. We study how correlation growth, bound pairs, and three-body losses emerge in the fraction of unbound atoms remaining post sweep, finding quantitative agreement with experiment\footnote{C. Eigen, J. A.P. Glidden, R. Lopes, N. Navon, Z. Hadzibabic, and R. P. Smith, PRL 119, 250404 (2017)} and speculate on discrepancies. We also highlight more recent efforts to study effects of higher-order correlations in the many-body dynamics, including the Efimov effect.