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Journal Article

Coherent Superposition of Feshbach Dimers and Efimov Trimers

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Giannakeas,  Panagiotis
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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1901.02268.pdf
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Citation

Yudkin, Y., Elbaz, R., Giannakeas, P., Greene, C. H., & Khaykovich, L. (2019). Coherent Superposition of Feshbach Dimers and Efimov Trimers. Physical Review Letters, 122(20): 200402. doi:10.1103/PhysRevLett.122.200402.


Cite as: http://hdl.handle.net/21.11116/0000-0004-4F18-A
Abstract
A powerful experimental technique to study Efimov physics at positive scattering lengths is demonstrated. We use the Feshbach dimers as a local reference for Efimov trimers by creating a coherent superposition of both states. Measurement of its coherent evolution provides information on the binding energy of the trimers with unprecedented precision and yields access to previously inaccessible parameters of the system such as the Efimov trimers' lifetime and the elastic processes between atoms and the constituents of the superposition state. We develop a comprehensive data analysis suitable for noisy experimental data that confirms the trustworthiness of our demonstration.