TY - JOUR
T1 - Electron dynamics in quantum wells under tilted magnetic field and intense AC field
AU - Villas-Bôas, J. M.
AU - Studart, Nelson
AU - Rivera, P. H.
AU - Zhang, Wei
AU - Ulloa, Sergio E.
N1 - Funding Information:
This work was partially supported by FAPESP and US DOE grant no. DE-FG02-91ER45334.
PY - 2003/5
Y1 - 2003/5
N2 - 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.
AB - 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.
KW - Double quantum well
KW - Dynamic localization
KW - Tilted magnetic field
UR - http://www.scopus.com/inward/record.url?scp=0038179726&partnerID=8YFLogxK
U2 - 10.1016/S1386-9477(02)01061-5
DO - 10.1016/S1386-9477(02)01061-5
M3 - Artículo de la conferencia
AN - SCOPUS:0038179726
VL - 18
SP - 157
EP - 158
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-3
Y2 - 20 August 2002 through 27 August 2002
ER -