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arXiv:2312.17654 · Physical Review A

Antiferromagnetic behavior in self-bound one-dimensional composite bosons

M. C. Gordillo

Published Jun 5, 2024• 1 citation
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Abstract

The author theoretically studies the structure of self-bound one-dimensional droplets containing a mixture of ytterbium fermionic isotopes. The results indicate that these droplets consist of consecutive molecules made up of two different isotopes of ytterbium.
DOI
10.1103/physreva.109.l061301

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Diffusion Monte Carlo calculations on the possibility of having self-bound one-dimensional droplets of SU(6) $\ifmmode\times\else\texttimes\fi{}$ SU(2) ultracold fermionic mixtures are presented. We found that, even though arrangements with attractive interactions with only two spin types are not self-bound, mixtures with at least three kinds of fermions form stable small drops. However, that stabilization decreases for very tight confinements, where a universal behavior is found for Fermi-Fermi and Fermi-Boson clusters including attractive and repulsive interactions.
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