Abstract
The ultrafast optical response of systems with strong ground-state correlations, such as a two dimensional electron gas (2DEG) in the quantum Hall (QH) regime, is extremely difficult to describe and, in fact, still unexplored. The first study of electronic dephasing in the presence of a 2DEG in the QH regime was recently reported,1 focusing on the excitation of the 2DEG within the lowest Landau level (LL). We present here the first investigation of the dynamics of the 2DEG inter-LL excitations.
© 2001 Optical Society of America
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