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Measurement of the s -wave scattering length between metastable helium isotopes

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2024

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Kannan, S.
Athreya, Y. S.
Abbas, A. H.
Yan, X. T.
Hodgman, S. S.
Truscott, A. G.

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Abstract

We report the experimental determination of the interspecies s-wave scattering length (a34) between the 23S1(F=3/2,mF=3/2) state of He∗3 and the 23S1(mJ=1) state of He∗4. We determine a34 by inducing oscillations in a trapped Bose-Einstein condensate of He∗4 and measuring the damping rate of these oscillations due to the presence of He∗3 atoms. Our measured value of a34=30±4 nm is in good agreement with theoretical predictions. The knowledge of this scattering length is important for many fundamental experiments between these helium isotopes.

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http://www.scopus.com/inward/record.url?scp=85213543671&partnerID=8YFLogxK
 https://hdl.handle.net/1885/733752431

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ANU Research Publications

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Physical Review A

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Journal article

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10.1103/PhysRevA.110.063324

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