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Article overview
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Convergence Properties of the Effective Theory for Trapped Bosons | S. Tölle
; H.-W. Hammer
; B. Ch. Metsch
; | Date: |
31 Oct 2012 | Abstract: | We investigate few-boson systems with resonant interactions in a narrow
harmonic trap within an effective theory framework. The size of the model space
is identified with the effective theory cutoff. In the universal regime, the
interactions of the bosons can be approximated by contact interactions. We
investigate the convergence properties of genuine and smeared contact
interactions as the size of the model space is increased and present a detailed
error analysis. The spectra for few-boson systems with up to 6 identical
particles are calculated by combining extrapolations in the cutoff and in the
smearing parameter. | Source: | arXiv, 1210.8373 | Services: | Forum | Review | PDF | Favorites |
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