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arXiv · 1006.4720

Four-body Efimov effect

Yvan Castin·Christophe Mora·Ludovic Pricoupenko
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Abstract

We study three same spin state fermions of mass M interacting with a distinguishable particle of mass m in the unitary limit where the interaction has a zero range and an infinite s-wave scattering length. We predict an interval of mass ratio 13.384 < M/m < 13.607 where there exists a purely four-body Efimov effect, leading to the occurrence of weakly bound tetramers without Efimov trimers.

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Yvan Castin, Christophe Mora, Ludovic Pricoupenko. 2010-06-24. Four-body Efimov effect. https://doi.org/10.1103/physrevlett.105.223201

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