Electron dynamics in quantum wells under tilted magnetic field and intense AC field

J. M. Villas-Bôas, Nelson Studart, P. H. Rivera, Wei Zhang, Sergio E. Ulloa

Research output: Contribution to journalConference articlepeer-review

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 languageEnglish
Pages (from-to)157-158
Number of pages2
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume18
Issue number1-3
DOIs
StatePublished - May 2003
Event23rd International Conference on Low Temperature Physics - Hiroshima, Japan
Duration: 20 Aug 200227 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

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