Details
| Original language | English |
|---|---|
| Journal | Physical Review Letters |
| Volume | 91 |
| Issue number | 19 |
| Publication status | Published - 3 Nov 2003 |
| Externally published | Yes |
Abstract
We have measured the deca-triplet [Formula presented]-wave scattering length of the bosonic chromium isotopes [Formula presented] and [Formula presented]. From the time constants for cross-dimensional thermalization in ultracold atomic samples, we have determined the magnitudes [Formula presented] and [Formula presented], where [Formula presented]. By measuring the rethermalization rate of [Formula presented] 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 [Formula presented] is positive. Rescaling our [Formula presented] model potential to [Formula presented] strongly suggests that [Formula presented] is positive also.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 91, No. 19, 03.11.2003.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Determination of the [formula presented]-wave scattering length of chromium
AU - Schmidt, Piet Oliver
AU - Hensler, S.
AU - Werner, J.
AU - Griesmaier, A.
AU - Görlitz, A.
AU - Pfau, T.
AU - Simoni, A.
PY - 2003/11/3
Y1 - 2003/11/3
N2 - We have measured the deca-triplet [Formula presented]-wave scattering length of the bosonic chromium isotopes [Formula presented] and [Formula presented]. From the time constants for cross-dimensional thermalization in ultracold atomic samples, we have determined the magnitudes [Formula presented] and [Formula presented], where [Formula presented]. By measuring the rethermalization rate of [Formula presented] 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 [Formula presented] is positive. Rescaling our [Formula presented] model potential to [Formula presented] strongly suggests that [Formula presented] is positive also.
AB - We have measured the deca-triplet [Formula presented]-wave scattering length of the bosonic chromium isotopes [Formula presented] and [Formula presented]. From the time constants for cross-dimensional thermalization in ultracold atomic samples, we have determined the magnitudes [Formula presented] and [Formula presented], where [Formula presented]. By measuring the rethermalization rate of [Formula presented] 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 [Formula presented] is positive. Rescaling our [Formula presented] model potential to [Formula presented] strongly suggests that [Formula presented] is positive also.
UR - http://www.scopus.com/inward/record.url?scp=85038273166&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.91.193201
DO - 10.1103/PhysRevLett.91.193201
M3 - Article
AN - SCOPUS:85038273166
VL - 91
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 19
ER -