Ground-state properties of dilute one-dimensional Bose gas with three-body repulsion

Publication date: Available online 5 December 2018Source: Physics Letters AAuthor(s): Volodymyr PastukhovAbstractWe determined perturbatively the low-energy universal thermodynamics of dilute one-dimensional bosons with the three-body repulsive forces. The final results are presented for the limit of vanishing potential range in terms of three-particle scattering length. An analogue of Tan's energy theorem for considered system is derived in generic case without assuming weakness of the interparticle interaction. We also obtained an exact identity relating the three-body contact to the energy density.

Source: Physics Letters A - December 6, 2018 Category: Physics Source Type: research