Observation of a shape resonance in cold-atom scattering by pulsed photoassociation

H.M.J.M. Boesten; C.C. Tsai; B.J. Verhaar; D.J. Heinzen

doi:10.1103/PhysRevLett.77.5194

Observation of a shape resonance in cold-atom scattering by pulsed photoassociation

H.M.J.M. Boesten, C.C. Tsai, B.J. Verhaar, D.J. Heinzen

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Abstract

We observe the time dependence of a cold-atom collision in a pulsed photoassociation experiment. For a g-wave shape resonance in the 85Rb+85Rb system we measure the time needed to build up the resonant state by tunneling through the centrifugal barrier. Combining this with time-independent 85Rb and 87Rb photoassociation we determine the resonance energy and find evidence for the decay of the shape resonance into inelastic channels. We also determine the 85Rb+85Rb and 87Rb+87Rb C6 coefficient and triplet scattering lengths without relying on ab initio calculations.

Original language	English
Pages (from-to)	5194-5197
Number of pages	4
Journal	Physical Review Letters
Volume	77
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.77.5194
Publication status	Published - 1996

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title = "Observation of a shape resonance in cold-atom scattering by pulsed photoassociation",

abstract = "We observe the time dependence of a cold-atom collision in a pulsed photoassociation experiment. For a g-wave shape resonance in the 85Rb+85Rb system we measure the time needed to build up the resonant state by tunneling through the centrifugal barrier. Combining this with time-independent 85Rb and 87Rb photoassociation we determine the resonance energy and find evidence for the decay of the shape resonance into inelastic channels. We also determine the 85Rb+85Rb and 87Rb+87Rb C6 coefficient and triplet scattering lengths without relying on ab initio calculations.",

author = "H.M.J.M. Boesten and C.C. Tsai and B.J. Verhaar and D.J. Heinzen",

year = "1996",

doi = "10.1103/PhysRevLett.77.5194",

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journal = "Physical Review Letters",

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T1 - Observation of a shape resonance in cold-atom scattering by pulsed photoassociation

AU - Boesten, H.M.J.M.

AU - Tsai, C.C.

AU - Verhaar, B.J.

AU - Heinzen, D.J.

PY - 1996

Y1 - 1996

N2 - We observe the time dependence of a cold-atom collision in a pulsed photoassociation experiment. For a g-wave shape resonance in the 85Rb+85Rb system we measure the time needed to build up the resonant state by tunneling through the centrifugal barrier. Combining this with time-independent 85Rb and 87Rb photoassociation we determine the resonance energy and find evidence for the decay of the shape resonance into inelastic channels. We also determine the 85Rb+85Rb and 87Rb+87Rb C6 coefficient and triplet scattering lengths without relying on ab initio calculations.

AB - We observe the time dependence of a cold-atom collision in a pulsed photoassociation experiment. For a g-wave shape resonance in the 85Rb+85Rb system we measure the time needed to build up the resonant state by tunneling through the centrifugal barrier. Combining this with time-independent 85Rb and 87Rb photoassociation we determine the resonance energy and find evidence for the decay of the shape resonance into inelastic channels. We also determine the 85Rb+85Rb and 87Rb+87Rb C6 coefficient and triplet scattering lengths without relying on ab initio calculations.

U2 - 10.1103/PhysRevLett.77.5194

DO - 10.1103/PhysRevLett.77.5194

M3 - Article

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VL - 77

SP - 5194

EP - 5197

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 26

ER -

Observation of a shape resonance in cold-atom scattering by pulsed photoassociation

Abstract

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