Current browse context:
cond-mat.quant-gas
Change to browse by:
References & Citations
Condensed Matter > Quantum Gases
Title: Emergent inflation of the Efimov spectrum under three-body spin-exchange interactions
(Submitted on 22 Sep 2023 (v1), last revised 28 Mar 2024 (this version, v2))
Abstract: We resolve the unexpected and long-standing disagreement between experiment and theory in the Efimovian three-body spectrum of Li-7, commonly referred to as the lithium few-body puzzle. Our results show that the discrepancy arises out of the presence of strong non-universal three-body spin-exchange interactions, which enact an effective inflation of the universal Efimov spectrum. This conclusion is obtained from a thorough numerical solution of the quantum mechanical three-body problem, including precise interatomic interactions and all spin degrees of freedom for three alkali-metal atoms. Our results show excellent agreement with the experimental data regarding both the Efimov spectrum and the absolute rate constants of three-body recombination, and in addition reveal a general product propensity for such triatomic reactions in the Paschen-Back regime, stemming from Wigner's spin conservation rule.
Submission history
From: Jasper van de Kraats [view email][v1] Fri, 22 Sep 2023 18:27:45 GMT (1915kb,D)
[v2] Thu, 28 Mar 2024 15:27:34 GMT (2284kb,D)
Link back to: arXiv, form interface, contact.