Universal Five- and Six-Body Droplets Tied to an Efimov Trimer

Understand

We explore the properties of weakly bound bosonic states in the strongly interacting regime.

• Combining a correlated-Gaussian (CG) basis set expansion with a complex scaling method, we extract the energies and structural properties of bosonic cluster states with $N\le6$ for different two-body potentials.
• The identification of five- and six-body resonances attached to an excited Efimov trimer provides strong support to the premise of Efimov universality in bosonic systems.
• Our study also reveals a rich structure of bosonic cluster states.