Title :
Electronic dephasing in the quantum Hall regime
Author :
Fromer, N.A. ; Schuller, C. ; Chemla ; Shabbazyan, T.V. ; Perakis, I.E. ; Maranowski, K. ; Gossard, A.C.
Author_Institution :
Dept. of Phys., California Univ., Berkeley, CA, USA
Abstract :
Summary form only given. We present the first investigation of electronic dephasing in the presence of two dimensional electron gas (2DEG) in the Quantum Hall regime using four wave mixing (FWM). We observe a transition from Markovian to non-Markovian behavior and abrupt variation of the decay time with filling factor, which we interpret in terms of photoexcited electrons scattering with collective excitations of the 2DE-liquid in the lowest Landau level.
Keywords :
multiwave mixing; quantum Hall effect; two-dimensional electron gas; Landau level; Markov process; collective excitation; decay time; electron scattering; electronic dephasing; filling factor; four-wave mixing; quantum Hall effect; quantum coherence; two-dimensional electron gas; Electrons; Filling; Four-wave mixing; Particle scattering;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-608-7
