dorsal/arxiv
View SchemaExperimental investigation of optical atom traps with a frequency jump
| Authors | P Ahmadi, G Behinaein, B P Timmons, G S Summy |
|---|---|
| Categories | |
| ArXiv ID | physics/0510092 |
| URL | https://arxiv.org/abs/physics/0510092 |
| DOI | 10.1088/0953-4075/39/5/014 |
Abstract
We study the evolution of a trapped atomic cloud subject to a trapping frequency jump for two cases: stationary and moving center of mass. In the first case, the frequency jump initiates oscillations in the cloud's momentum and size. At certain times we find the temperature is significantly reduced. When the oscillation amplitude becomes large enough, local density increases induced by the anharmonicity of the trapping potential are observed. In the second case, the oscillations are coupled to the center of mass motion through the anharmonicity of the potential. This induces oscillations with even larger amplitudes, enhancing the temperature reduction effects and leading to nonisotropic expansion rates while expanding freely.
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"abstract": "We study the evolution of a trapped atomic cloud subject to a trapping\nfrequency jump for two cases: stationary and moving center of mass. In the\nfirst case, the frequency jump initiates oscillations in the cloud\u0027s momentum\nand size. At certain times we find the temperature is significantly reduced.\nWhen the oscillation amplitude becomes large enough, local density increases\ninduced by the anharmonicity of the trapping potential are observed. In the\nsecond case, the oscillations are coupled to the center of mass motion through\nthe anharmonicity of the potential. This induces oscillations with even larger\namplitudes, enhancing the temperature reduction effects and leading to\nnonisotropic expansion rates while expanding freely.",
"arxiv_id": "physics/0510092",
"authors": [
"P Ahmadi",
"G Behinaein",
"B P Timmons",
"G S Summy"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1088/0953-4075/39/5/014",
"title": "Experimental investigation of optical atom traps with a frequency jump",
"url": "https://arxiv.org/abs/physics/0510092"
},
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