Photoreactions with universal trimers

Betzalel Bazak*, Nir Barnea

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Considering one-body and two-body currents, we study the photoassociation and photodissociation of universal bosonic trimers. Analyzing the relative importance of these currents, we identify two physical scenarios: (i) normal hierarchy, where naive power counting holds and the one-body current dominates, and (ii) strong hierarchy, where the one-body current is suppressed. For both scenarios we observe that at the high-frequency tail, the response function exhibits log-periodic oscillations in transition to or from any continuum state regardless of the reaction partial-wave channel. In contrast, near-threshold log-periodic oscillations appear only in the leading s-wave components. These oscillations are the fingerprints of universal Efimov physics. We discuss the relevance of this effect to contemporary experiments in ultracold atoms.

Original languageAmerican English
Article number030501
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - 21 Mar 2014


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