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论文类型：期刊论文

发表时间：2021-01-10

发表刊物：JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

卷号：53

期号：20

ISSN号：0953-4075

关键字：photoassociation; Feshbach resonance; ultracold molecules

摘要：We investigate theoretically the formation of ultracold ground-state CsYb molecules on the lowest vibrational level via the Feshbach-optimized photoassociation process. Three s-wave Feshbach resonances of CsYb are found. The probability density of the scattering state in the short-range internuclear distance is significantly enhanced near the resonance positions. The population transfer efficiency reaches its maximum when the pulse duration equals half a period of the Rabi oscillation. By using the optimized laser parameters including the peak intensity and detuning, the final population of the lowest vibrational level of the ground electronic state reaches order of 10(-1)in the four-laser scheme.