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Production of an ultracold mixture of 23Na40K and 40K

Xinyao Wang, Zhen Su, Jin Cao +4 more

Science China Physics Mechanics and AstronomyDec 30, 20215 citations

Creation of an ultracold gas of triatomic molecules from an atom–diatomic molecule mixture

H. X. Yang, Jin Cao, Zhen Su +3 more

In recent years, there has been notable progress in the preparation and control of ultracold gases of diatomic molecules. The next experimental challenge is the production of ultracold polyatomic molecular gases. Here, we report the creation of an ultracold gas of 23 Na 40 K 2 triatomic molecules from a mixture of ground-state sodium-23–potassium-40 ( 23 Na 40 K) molecules and potassium-40 ( 40 K) atoms. The triatomic molecules were created by adiabatic magneto-association through an atom–diatomic molecule Feshbach resonance. We obtained clear evidence for the creation of triatomic molecules by directly detecting them using radio-frequency dissociation. Approximately 4000 triatomic molecules with a high-peak phase-space density of 0.05 could be created. The ultracold triatomic molecules can serve as a launchpad to probe the three-body potential energy surface and may be used to prepare quantum degenerate triatomic molecular gases.In recent years, there has been notable progress in the preparation and control of ultracold gases of diatomic molecules. The next experimental challenge is the production of ultracold polyatomic molecular gases. Here, we report the creation of an ultracold gas of 23 Na 40 K 2 triatomic molecules from a mixture of ground-state sodium-23–potassium-40 ( 23 Na 40 K) molecules and potassium-40 ( 40 K) atoms. The triatomic molecules were created by adiabatic magneto-association through an atom–diatomic molecule Feshbach resonance. We obtained clear evidence for the creation of triatomic molecules by directly detecting them using radio-frequency dissociation. Approximately 4000 triatomic molecules with a high-peak phase-space density of 0.05 could be created. The ultracold triatomic molecules can serve as a launchpad to probe the three-body potential energy surface and may be used to prepare quantum degenerate triatomic molecular gases.

ScienceDec 1, 202239 citations

Triatomic states in ultracold gases

Marcelo Takeshi Yamashita, T. Frederico, Lauro Tomio

Nuclear Physics AJun 1, 20071 citation

Creation of three-species87Rb–40K–6Li molecules: interfering for the best

Hui Jing, Ya-Jing Jiang, Weiping Zhang +1 more

An ultracold three-species Bose–Fermi–Fermi degenerate atomic mixture 87 Rb– 40 K– 6 Li was realized very recently (Tagliber M et al 2008 Phys. Rev. Lett. 100 010401). Here, we study the creation of heteronuclear triatomic molecules in this mixture, and show that a constructive triple-path interference can lead to an almost ideal conversion rate, in comparison with the single- or double-path cases. The important effect of the initial population imbalance on the atom–molecule dark state is also investigated.An ultracold three-species Bose–Fermi–Fermi degenerate atomic mixture 87 Rb– 40 K– 6 Li was realized very recently (Tagliber M et al 2008 Phys. Rev. Lett. 100 010401). Here, we study the creation of heteronuclear triatomic molecules in this mixture, and show that a constructive triple-path interference can lead to an almost ideal conversion rate, in comparison with the single- or double-path cases. The important effect of the initial population imbalance on the atom–molecule dark state is also investigated.

New Journal of PhysicsDec 4, 200810 citations

Strongly Interacting Mixtures of Ultracold Atoms

Cheng-Hsun Wu, Ibon Santiago, Jee Woo Park +2 more

Bulletin of the American Physical SocietyMay 28, 20100 citations

Ultracold Atoms, Mixtures, and Molecules

Subhadeep Gupta

Bulletin of the American Physical SocietyOct 2, 20100 citations

Evidence for the association of triatomic molecules in ultracold 23Na40K + 40K mixtures

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Evidence for the association of triatomic molecules in ultracold 23Na40K + 40K mixtures

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