Coherent ultrafast dynamics in the quantum Hall effect regime

Autor:	Ilias E. Perakis, Daniel S. Chemla
Rok vydání:	2003
Předmět:	Physics Condensed matter physics Dephasing Exciton General Chemistry Landau quantization Electron hole Quantum Hall effect Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Excited state Materials Chemistry Quasiparticle Fermi gas
Zdroj:	Solid State Communications. 127:147-154
ISSN:	0038-1098
Popis:	We review recent investigations of the femtosecond non-linear optical response of the two-dimensional electron gas (2DEG) in the quantum Hall effect regime. We find that the time and frequency profile of the four-wave-mixing non-linear optical spectrum is strongly influenced by Coulomb correlations between the photoexcited electron–hole pairs and the 2DEG collective excitations. We discuss experimental and theoretical results showing non-Markovian memory effects in the polarization dephasing, and an optically induced time-dependent coupling between the two lowest Landau level magnetoexcitons.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8447dd0f5ea0fed24d187c63cfa23474 https://doi.org/10.1016/s0038-1098(03)00342-9 Zobrazit plný text záznamu Full Text from ScienceDirect