Data di Pubblicazione:
2008
Abstract:
Atomic wave packets loaded into a phase-modulated vertical optical-lattice potential exhibit a coherent
delocalization dynamics arising from intraband transitions among Wannier-Stark levels. Wannier-Stark
intraband transitions are here observed by monitoring the in situ wave-packet extent. By varying the
modulation frequency, we find resonances at integer multiples of the Bloch frequency. The resonances
show a Fourier-limited width for interrogation times up to 2 s. This can also be used to determine the
gravity acceleration with ppm resolution.
delocalization dynamics arising from intraband transitions among Wannier-Stark levels. Wannier-Stark
intraband transitions are here observed by monitoring the in situ wave-packet extent. By varying the
modulation frequency, we find resonances at integer multiples of the Bloch frequency. The resonances
show a Fourier-limited width for interrogation times up to 2 s. This can also be used to determine the
gravity acceleration with ppm resolution.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Quantum; Devices, Cold Atoms, Mathematics Of Trapped Atoms
Elenco autori:
V. V., Ivanov; A., Alberti; M., Schioppo; G., Ferrari; Artoni, Maurizio; M. L., Chiofalo
Link alla scheda completa:
Pubblicato in: