Dipole-dipole-coupled double-Rydberg molecules
We show that the dipole-dipole interaction between two Rydberg atoms can give rise to long-range molecules. The binding potential arises from two states that converge to different separated-atom asymptotes. These states interact weakly at large distances, but start to repel each other strongly as th...
| Huvudupphovsmän: | , , , |
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| Materialtyp: | Journal article |
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2012
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| _version_ | 1826282411085791232 |
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| author | Kiffner, M Park, H Li, W Gallagher, T |
| author_facet | Kiffner, M Park, H Li, W Gallagher, T |
| author_sort | Kiffner, M |
| collection | OXFORD |
| description | We show that the dipole-dipole interaction between two Rydberg atoms can give rise to long-range molecules. The binding potential arises from two states that converge to different separated-atom asymptotes. These states interact weakly at large distances, but start to repel each other strongly as the van der Waals interaction turns into a resonant dipole-dipole interaction with decreasing separation between the atoms. This mechanism leads to the formation of an attractive well for one of the potentials. If the two separated-atom asymptotes come from the small Stark splitting of an atomic Rydberg level, which lifts the Zeeman degeneracy, the depth of the well and the location of its minimum are controlled by the external electric field. We discuss two different geometries that result in a localized and a donut-shaped potential, respectively. © 2012 American Physical Society. |
| first_indexed | 2024-03-07T00:43:26Z |
| format | Journal article |
| id | oxford-uuid:83d64b13-b6d9-43e8-a73d-83d5b78dfc38 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:43:26Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:83d64b13-b6d9-43e8-a73d-83d5b78dfc382022-03-26T21:46:57ZDipole-dipole-coupled double-Rydberg moleculesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:83d64b13-b6d9-43e8-a73d-83d5b78dfc38Symplectic Elements at Oxford2012Kiffner, MPark, HLi, WGallagher, TWe show that the dipole-dipole interaction between two Rydberg atoms can give rise to long-range molecules. The binding potential arises from two states that converge to different separated-atom asymptotes. These states interact weakly at large distances, but start to repel each other strongly as the van der Waals interaction turns into a resonant dipole-dipole interaction with decreasing separation between the atoms. This mechanism leads to the formation of an attractive well for one of the potentials. If the two separated-atom asymptotes come from the small Stark splitting of an atomic Rydberg level, which lifts the Zeeman degeneracy, the depth of the well and the location of its minimum are controlled by the external electric field. We discuss two different geometries that result in a localized and a donut-shaped potential, respectively. © 2012 American Physical Society. |
| spellingShingle | Kiffner, M Park, H Li, W Gallagher, T Dipole-dipole-coupled double-Rydberg molecules |
| title | Dipole-dipole-coupled double-Rydberg molecules |
| title_full | Dipole-dipole-coupled double-Rydberg molecules |
| title_fullStr | Dipole-dipole-coupled double-Rydberg molecules |
| title_full_unstemmed | Dipole-dipole-coupled double-Rydberg molecules |
| title_short | Dipole-dipole-coupled double-Rydberg molecules |
| title_sort | dipole dipole coupled double rydberg molecules |
| work_keys_str_mv | AT kiffnerm dipoledipolecoupleddoublerydbergmolecules AT parkh dipoledipolecoupleddoublerydbergmolecules AT liw dipoledipolecoupleddoublerydbergmolecules AT gallaghert dipoledipolecoupleddoublerydbergmolecules |