Periodic Wannier\textendashStark ladder structures of the energy resonances associated with Bloch oscillations can be readily modified into quasi-periodic ones that exhibit peculiar self-similar effects. A compact theoretical description of the dynamics of driven Bloch oscillations is developed here within the quasi-momentum representation. We identify a rather viable scheme based on ultracold atomic wavepackets subject to gravity in a driven optical lattice potential where a self-similar scaling could be observed. Its feasibility in terms of realistic experimental parameters is also discussed.
Quasi-periodic Wannier-Stark ladders from driven atomic Bloch oscillations
ARTONI, Maurizio;
2014-01-01
Abstract
Periodic Wannier\textendashStark ladder structures of the energy resonances associated with Bloch oscillations can be readily modified into quasi-periodic ones that exhibit peculiar self-similar effects. A compact theoretical description of the dynamics of driven Bloch oscillations is developed here within the quasi-momentum representation. We identify a rather viable scheme based on ultracold atomic wavepackets subject to gravity in a driven optical lattice potential where a self-similar scaling could be observed. Its feasibility in terms of realistic experimental parameters is also discussed.File in questo prodotto:
File | Dimensione | Formato | |
---|---|---|---|
20140421.full.pdf
accesso aperto
Descrizione: Full Text
Tipologia:
Full Text
Licenza:
DRM non definito
Dimensione
879.21 kB
Formato
Adobe PDF
|
879.21 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.