Three-body loss in lithium from functional renormalization

Abstract

We use functional integral methods for an estimate of the three-body loss in a three-component ${}^6$Li ultracold atom gas. We advocate a simple picture where the loss proceeds by the formation of a three-atom bound state, the trion. In turn, the effective amplitude for the trion formation from three atoms is estimated from a simple effective boson exchange process. The energy gap of the trion and other key quantities for the loss coefficient are computed in a functional renormalization group framework.

4 pages, 4 figures

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Cited by in corpus (27)

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• The nonperturbative functional renormalization group and its applications
• Fundamentals of the Exact Renormalization Group
• Evidence for Ground- and Excited-State Efimov Trimers in a Three-State Fermi Gas
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• Efimov physics from the functional renormalization group
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• The Efimov effect for heteronuclear three-body systems at positive scattering length and finite temperature
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