Robust, fast, and efficient formation of stable tetratomic molecules from ultracold atoms via generalized stimulated Raman exact passage

TL;DR

This paper introduces a novel two-step method combining generalized stimulated Raman exact passage techniques to efficiently produce stable ultracold tetratomic molecules from atoms, advancing the field of ultracold molecule formation.

Contribution

It proposes a new two-step strategy using generalized nonlinear STIREP and chainwise-STIREP techniques for stable tetratomic molecule formation from ultracold atoms.

Findings

Demonstrates the robustness and efficiency of the proposed method

Shows potential for fast conversion to stable tetratomic molecules

Provides systematic numerical validation of the approach

Abstract

The study of the conversion of ultracold atoms into molecules has long remained a hot topic in atomic, molecular, and optical physics. However, most prior research has focused on diatomic molecules, with relatively scarce exploration of polyatomic molecules. Here we propose a two-step strategy for the formation of stable ultracold tetratomic molecules. We first suggest a generalized nonlinear stimulated Raman exact passage (STIREP) technique for the coherent conversion of ultracold atoms to tetratomic molecules, which is subsequently followed by a chainwise-STIREP technique to transfer the resulting molecules into a sufficiently stable ground state. Through systematic numerical analysis, we demonstrate that the proposed two-step strategy holds great potential for the robust, fast, and efficient formation of stable ultracold tetratomic molecules.