dorsal/arxiv
View SchemaShort-pulse photoassociation in rubidium below the D$_1$ line
| Authors | Christiane P. Koch, Ronnie Kosloff, Françoise Masnou-Seeuws |
|---|---|
| Categories | |
| ArXiv ID | physics/0511235 |
| URL | https://arxiv.org/abs/physics/0511235 |
| DOI | 10.1103/PhysRevA.73.043409 |
| Journal | Phys. Rev. A 73, 043409 (2006) |
Abstract
Photoassociation of two ultracold rubidium atoms and the subsequent formation of stable molecules in the singlet ground and lowest triplet states is investigated theoretically. The method employs laser pulses inducing transitions via excited states correlated to the $5S+5P_{1/2}$ asymptote. Weakly bound molecules in the singlet ground or lowest triplet state can be created by a single pulse while the formation of more deeply bound molecules requires a two-color pump-dump scenario. More deeply bound molecules in the singlet ground or lowest triplet state can be produced only if efficient mechanisms for both pump and dump steps exist. While long-range $1/R^3$-potentials allow for efficient photoassociation, stabilization is facilitated by the resonant spin-orbit coupling of the $0_u^+$ states. Molecules in the singlet ground state bound by a few wavenumbers can thus be formed. This provides a promising first step toward ground state molecules which are ultracold in both translational and vibrational degrees of freedom.
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"abstract": "Photoassociation of two ultracold rubidium atoms and the subsequent formation\nof stable molecules in the singlet ground and lowest triplet states is\ninvestigated theoretically. The method employs laser pulses inducing\ntransitions via excited states correlated to the $5S+5P_{1/2}$ asymptote.\nWeakly bound molecules in the singlet ground or lowest triplet state can be\ncreated by a single pulse while the formation of more deeply bound molecules\nrequires a two-color pump-dump scenario. More deeply bound molecules in the\nsinglet ground or lowest triplet state can be produced only if efficient\nmechanisms for both pump and dump steps exist. While long-range\n$1/R^3$-potentials allow for efficient photoassociation, stabilization is\nfacilitated by the resonant spin-orbit coupling of the $0_u^+$ states.\nMolecules in the singlet ground state bound by a few wavenumbers can thus be\nformed. This provides a promising first step toward ground state molecules\nwhich are ultracold in both translational and vibrational degrees of freedom.",
"arxiv_id": "physics/0511235",
"authors": [
"Christiane P. Koch",
"Ronnie Kosloff",
"Fran\u00e7oise Masnou-Seeuws"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.73.043409",
"journal_ref": "Phys. Rev. A 73, 043409 (2006)",
"title": "Short-pulse photoassociation in rubidium below the D$_1$ line",
"url": "https://arxiv.org/abs/physics/0511235"
},
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