dorsal/arxiv
View SchemaRogue decoherence in the formation of a macroscopic atom-molecule superposition
| Authors | Olavi Dannenberg, Matt Mackie |
|---|---|
| Categories | |
| ArXiv ID | physics/0607075 |
| URL | https://arxiv.org/abs/physics/0607075 |
| DOI | 10.1103/PhysRevA.74.053601 |
| Journal | Phys. Rev. A 74, 053601 (2006). |
Abstract
We theoretically examine two-color photoassociation of a Bose-Einstein condensate, focusing on the role of rogue decoherence in the formation of macroscopic atom-molecule superpositions. Rogue dissociation occurs when two zero-momentum condensate atoms are photoassociated into a molecule, which then dissociates into a pair of atoms of equal-and-opposite momentum, instead of dissociating back to the zero-momentum condensate. As a source of decoherence that may damp quantum correlations in the condensates, rogue dissociation is an obstacle to the formation of a macroscopic atom-molecule superposition. We study rogue decoherence in a setup which, without decoherence, yields a macroscopic atom-molecule superposition, and find that the most favorable conditions for said superposition are a density ~ 1e12 atoms per cc and temperature ~ 1e-10.
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"abstract": "We theoretically examine two-color photoassociation of a Bose-Einstein\ncondensate, focusing on the role of rogue decoherence in the formation of\nmacroscopic atom-molecule superpositions. Rogue dissociation occurs when two\nzero-momentum condensate atoms are photoassociated into a molecule, which then\ndissociates into a pair of atoms of equal-and-opposite momentum, instead of\ndissociating back to the zero-momentum condensate. As a source of decoherence\nthat may damp quantum correlations in the condensates, rogue dissociation is an\nobstacle to the formation of a macroscopic atom-molecule superposition. We\nstudy rogue decoherence in a setup which, without decoherence, yields a\nmacroscopic atom-molecule superposition, and find that the most favorable\nconditions for said superposition are a density ~ 1e12 atoms per cc and\ntemperature ~ 1e-10.",
"arxiv_id": "physics/0607075",
"authors": [
"Olavi Dannenberg",
"Matt Mackie"
],
"categories": [
"physics.atom-ph",
"physics.chem-ph"
],
"doi": "10.1103/PhysRevA.74.053601",
"journal_ref": "Phys. Rev. A 74, 053601 (2006).",
"title": "Rogue decoherence in the formation of a macroscopic atom-molecule superposition",
"url": "https://arxiv.org/abs/physics/0607075"
},
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