2018/12/14 by A. Kievsky, Kievsky, A., A. Polls +7
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas)
paper · pdf · doi:10.48550/arxiv.1812.05911
openalex publication_date 2018/12/14 · openalex created_date 2018/12/22 · openalex updated_date 2026/07/28
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.