Ultracold field-linked tetratomic molecules.

ABSTRACT: Ultracold polyatomic molecules offer opportunities¹ in cold chemistry^2,3, precision measurements⁴ and quantum information processing^5,6, because of their rich internal structure. However, their increased complexity compared with diatomic molecules presents a challenge in using conventional cooling techniques. Here we demonstrate an approach to create weakly bound ultracold polyatomic molecules by electroassociation⁷ (F.D. et al., manuscript in preparation) in a degenerate Fermi gas of microwave-dressed polar molecules through a field-linked resonance^8-11. Starting from ground-state NaK molecules, we create around 1.1 × 10³ weakly bound tetratomic (NaK)₂ molecules, with a phase space density of 0.040(3)

SUBMITTER: Chen XY 

PROVIDER: S-EPMC10849947 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature