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Condensed Matter > Quantum Gases

Title: Universal trimers of one-dimensional bosons with two- and three-body attractions

Abstract: When quantum particles are confined into lower dimensions, an effective three-body interaction inevitably arises and may cause significant consequences. Here we study bosons in one dimension with weak two-body and three-body interactions and predict the existence of two three-body bound states when both interactions are attractive. Their binding energies are universal functions of the two-body and three-body scattering lengths and have direct relevance to a broad range of quasi-one-dimensional systems realized with ultracold atoms.
Comments: 5 pages, 2 figures
Subjects: Quantum Gases (cond-mat.quant-gas)
Cite as: arXiv:1803.06759 [cond-mat.quant-gas]
  (or arXiv:1803.06759v1 [cond-mat.quant-gas] for this version)

Submission history

From: Yusuke Nishida [view email]
[v1] Sun, 18 Mar 2018 22:30:30 GMT (66kb)