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Three-body recombination into deep bound states in a Bose gas with large scattering length

Eric Braaten·H. -W. Hammer
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Abstract

An effective field theory for the three-body system with large scattering length a is applied to three-body recombination into deep bound states in a Bose gas. The recombination constant αis calculated to first order in the short-distance interactions that allow the recombination. For a < 0, the dimensionless combination m α/(\hbar a^4) is a periodic function of \ln |a| that exhibits resonances at values of a that differ by multiplicative factors of 22.7. This dramatic behavior should be observable near a Feshbach resonance when a becomes large and negative.

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Eric Braaten, H. -W. Hammer. 2001-06-04. Three-body recombination into deep bound states in a Bose gas with large scattering length. https://doi.org/10.1103/physrevlett.87.160407

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