Abstract
The electron dynamics in a double quantum well under strong AC electric field and tilted magnetic field is studied using a non-perturbative Floquet approach. For B∥ = 0, the quasienergy spectra show two types of crossings: those related to different Landau levels (LL), and those due to dynamic localization (DL). We find that the system exhibits DL at the same values of the AC field suggesting a hidden dynamical symmetry identified with different parity operations. We analyze also the time evolution of the system, monitoring the elapsed time to return to a given well, and find a complex behavior which is studied in detail.
Original language | English |
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Pages (from-to) | 157-158 |
Number of pages | 2 |
Journal | Physica E: Low-Dimensional Systems and Nanostructures |
Volume | 18 |
Issue number | 1-3 |
DOIs | |
State | Published - May 2003 |
Event | 23rd International Conference on Low Temperature Physics - Hiroshima, Japan Duration: 20 Aug 2002 → 27 Aug 2002 |
Bibliographical note
Funding Information:This work was partially supported by FAPESP and US DOE grant no. DE-FG02-91ER45334.
Keywords
- Double quantum well
- Dynamic localization
- Tilted magnetic field