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

References in corpus (5)

• Collisional stability of a three-component degenerate Fermi gas
• Three-body recombination in a three-state Fermi gas with widely tunable interactions
• Particle-hole fluctuations in the BCS-BEC Crossover
• Efimov effect from functional renormalization
• Functional renormalization for trion formation in ultracold fermion gases