When the binding energy of a two-body system goes to zero the two-body system shows a continuous scaling invariance governed by the large value of the scattering length. In the case of three identical bosons, the three-body system in the same limit shows the Efimov effect and the scale invariance is broken to a discrete scale invariance. As the number of bosons increases correlations appear between the binding energy of the few- and many-body systems. We discuss some of them as the relation between the saturation properties of the infinite system and the low-energy properties of the few-boson system.
CITATION STYLE
Kievsky, A., Polls, A., Juliá-Díaz, B., Timofeyuk, N., & Gattobigio, M. (2020). Bosonic Drops with Two- and Three-Body Interactions Close to the Unitary Limit. In Springer Proceedings in Physics (Vol. 238, pp. 851–856). Springer. https://doi.org/10.1007/978-3-030-32357-8_133
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