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arXiv · 1807.07106

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

Volodymyr Pastukhov
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Abstract

We 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.

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Volodymyr Pastukhov. 2018-07-18. Ground-state properties of dilute one-dimensional Bose gas with three-body repulsion. https://doi.org/10.1016/j.physleta.2018.12.006

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