dorsal/arxiv
View SchemaTrapping and coherent manipulation of a Rydberg atom on a microfabricated device: a proposal
| Authors | John Mozley, Philippe Hyafil, Gilles Nogues, Michel Brune, Jean-Michel Raimond, Serge Haroche |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506101 |
| URL | https://arxiv.org/abs/quant-ph/0506101 |
| DOI | 10.1140/epjd/e2005-00184-7 |
| Journal | European Physical Journal D 35 (2005) 43 |
Abstract
We propose to apply atom-chip techniques to the trapping of a single atom in a circular Rydberg state. The small size of microfabricated structures will allow for trap geometries with microwave cut-off frequencies high enough to inhibit the spontaneous emission of the Rydberg atom, paving the way to complete control of both external and internal degrees of freedom over very long times. Trapping is achieved using carefully designed electric fields, created by a simple pattern of electrodes. We show that it is possible to excite, and then trap, one and only one Rydberg atom from a cloud of ground state atoms confined on a magnetic atom chip, itself integrated with the Rydberg trap. Distinct internal states of the atom are simultaneously trapped, providing us with a two-level system extremely attractive for atom-surface and atom-atom interaction studies. We describe a method for reducing by three orders of magnitude dephasing due to Stark shifts, induced by the trapping field, of the internal transition frequency. This allows for, in combination with spin-echo techniques, maintenance of an internal coherence over times in the second range. This method operates via a controlled light shift rendering the two internal states' Stark shifts almost identical. We thoroughly identify and account for sources of imperfection in order to verify at each step the realism of our proposal.
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"abstract": "We propose to apply atom-chip techniques to the trapping of a single atom in\na circular Rydberg state. The small size of microfabricated structures will\nallow for trap geometries with microwave cut-off frequencies high enough to\ninhibit the spontaneous emission of the Rydberg atom, paving the way to\ncomplete control of both external and internal degrees of freedom over very\nlong times. Trapping is achieved using carefully designed electric fields,\ncreated by a simple pattern of electrodes. We show that it is possible to\nexcite, and then trap, one and only one Rydberg atom from a cloud of ground\nstate atoms confined on a magnetic atom chip, itself integrated with the\nRydberg trap. Distinct internal states of the atom are simultaneously trapped,\nproviding us with a two-level system extremely attractive for atom-surface and\natom-atom interaction studies. We describe a method for reducing by three\norders of magnitude dephasing due to Stark shifts, induced by the trapping\nfield, of the internal transition frequency. This allows for, in combination\nwith spin-echo techniques, maintenance of an internal coherence over times in\nthe second range. This method operates via a controlled light shift rendering\nthe two internal states\u0027 Stark shifts almost identical. We thoroughly identify\nand account for sources of imperfection in order to verify at each step the\nrealism of our proposal.",
"arxiv_id": "quant-ph/0506101",
"authors": [
"John Mozley",
"Philippe Hyafil",
"Gilles Nogues",
"Michel Brune",
"Jean-Michel Raimond",
"Serge Haroche"
],
"categories": [
"quant-ph",
"physics.atom-ph"
],
"doi": "10.1140/epjd/e2005-00184-7",
"journal_ref": "European Physical Journal D 35 (2005) 43",
"title": "Trapping and coherent manipulation of a Rydberg atom on a microfabricated device: a proposal",
"url": "https://arxiv.org/abs/quant-ph/0506101"
},
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