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Schmidt PO, Hensler S, Werner J, et al. Determination of the s-wave scattering length of chromium. Phys Rev Lett. 2003;91(19):193201doi: 10.1103/PhysRevLett.91.193201.
Schmidt, P. O., Hensler, S., Werner, J., Griesmaier, A., Görlitz, A., Pfau, T., & Simoni, A. (2003). Determination of the s-wave scattering length of chromium. Physical review letters, 91(19), 193201. https://doi.org/10.1103/PhysRevLett.91.193201
Schmidt, P O, et al. "Determination of the s-wave scattering length of chromium." Physical review letters vol. 91,19 (2003): 193201. doi: https://doi.org/10.1103/PhysRevLett.91.193201
Schmidt PO, Hensler S, Werner J, Griesmaier A, Görlitz A, Pfau T, Simoni A. Determination of the s-wave scattering length of chromium. Phys Rev Lett. 2003 Nov 07;91(19):193201. doi: 10.1103/PhysRevLett.91.193201. Epub 2003 Nov 03. PMID: 14611578.
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Phys Rev Lett. 2003 Nov 07;91(19):193201. doi: 10.1103/PhysRevLett.91.193201. Epub 2003 Nov 03.

Determination of the s-wave scattering length of chromium.

Physical review letters

P O Schmidt, S Hensler, J Werner, A Griesmaier, A Görlitz, T Pfau, A Simoni

Affiliations

  1. 5. Physikalisches Institut, Universität Stuttgart, 70550 Stuttgart, Germany.

PMID: 14611578 DOI: 10.1103/PhysRevLett.91.193201

Abstract

We have measured the deca-triplet s-wave scattering length of the bosonic chromium isotopes 52Cr and 50Cr. From the time constants for cross-dimensional thermalization in ultracold atomic samples, we have determined the magnitudes |a(52Cr)|=(170+/-39)a(0) and |a(50Cr)|=(40+/-15)a(0), where a(0)=0.053 nm. By measuring the rethermalization rate of 52Cr over a wide temperature range and comparing the temperature dependence with the effective-range theory and numerical single-channel calculations, we have obtained strong evidence that the sign of a(52Cr) is positive. Rescaling our 52Cr model potential to 50Cr strongly suggests that a(50Cr) is positive also.

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