Experimental observation of phase space resonances in the quantum chaotic dynamics of cold atoms
Summary form only given. In our experiments ultracold rubidium atoms are loaded into an optical standing wave. The amplitude of the standing wave is then modulated, creating a time dependent potential given by V(x,t)=/spl kappa/(1-2/spl epsiv/sin(2/spl pi/f/sub m/t))cos(2kx) where /spl kappa/ is the...
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Published in | Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference pp. 240 - 241 |
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Main Authors | , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
1999
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Subjects | |
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Abstract | Summary form only given. In our experiments ultracold rubidium atoms are loaded into an optical standing wave. The amplitude of the standing wave is then modulated, creating a time dependent potential given by V(x,t)=/spl kappa/(1-2/spl epsiv/sin(2/spl pi/f/sub m/t))cos(2kx) where /spl kappa/ is the strength of the potential, /spl epsiv/ is the amplitude of modulation and f/sub m/ is the frequency of modulation. The dynamics of atoms in such a potential is chaotic except for small islands of stability which exist for certain values of /spl kappa/, /spl epsiv/ and f/sub m/. These islands are phase space resonances and rotate in phase space at the modulation frequency. By viewing the dynamics of the interaction stroboscopically, at intervals of the modulation frequency it is possible to observe these resonances in the final atomic velocity distribution. |
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AbstractList | Summary form only given. In our experiments ultracold rubidium atoms are loaded into an optical standing wave. The amplitude of the standing wave is then modulated, creating a time dependent potential given by V(x,t)=/spl kappa/(1-2/spl epsiv/sin(2/spl pi/f/sub m/t))cos(2kx) where /spl kappa/ is the strength of the potential, /spl epsiv/ is the amplitude of modulation and f/sub m/ is the frequency of modulation. The dynamics of atoms in such a potential is chaotic except for small islands of stability which exist for certain values of /spl kappa/, /spl epsiv/ and f/sub m/. These islands are phase space resonances and rotate in phase space at the modulation frequency. By viewing the dynamics of the interaction stroboscopically, at intervals of the modulation frequency it is possible to observe these resonances in the final atomic velocity distribution. |
Author | Truscott, A.G. Friese, M.E.J. Hensinger, W.K. Rubinsztein-Dunlop, H. Heckenberg, N.R. |
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PublicationTitle | Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference |
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Snippet | Summary form only given. In our experiments ultracold rubidium atoms are loaded into an optical standing wave. The amplitude of the standing wave is then... |
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StartPage | 240 |
SubjectTerms | Atom optics Atomic beams Atomic measurements Chaos Frequency Optical pulses Optical saturation Pulse measurements Quantum mechanics Resonance |
Title | Experimental observation of phase space resonances in the quantum chaotic dynamics of cold atoms |
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