Sub-Fourier characteristics of a δ-kicked-rotor resonance
We experimentally investigate the sub-Fourier behavior of a δ-kicked-rotor resonance by performing a measurement of the fidelity or overlap of a Bose-Einstein condensate exposed to a periodically pulsed standing wave. The temporal width of the fidelity resonance peak centered at the Talbot time and...
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| Veröffentlicht in: | Physical review letters 2010-07, Vol.105 (5), p.054103-054103, Article 054103 |
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| container_end_page | 054103 |
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| container_title | Physical review letters |
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| creator | Talukdar, I Shrestha, R Summy, G S |
| description | We experimentally investigate the sub-Fourier behavior of a δ-kicked-rotor resonance by performing a measurement of the fidelity or overlap of a Bose-Einstein condensate exposed to a periodically pulsed standing wave. The temporal width of the fidelity resonance peak centered at the Talbot time and zero initial momentum exhibits an inverse cube pulse number (1/N3)-dependent scaling compared to a 1/N2 dependence for the mean energy width at the same resonance. A theoretical analysis shows that for an accelerating potential the width of the resonance in acceleration space depends on 1/N3, a property which we also verify experimentally. Such a sub-Fourier effect could be useful for high precision gravity measurements. |
| doi_str_mv | 10.1103/PhysRevLett.105.054103 |
| format | Article |
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| title | Sub-Fourier characteristics of a δ-kicked-rotor resonance |
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