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Quantum beats versus polarization interference: An experimental distinction



Physical review letters 69 (1992), No.25, pp.3631-3634 : Abb.,Lit.
ISSN: 0031-9007
Journal Article
Fraunhofer IAF ()
heterostructure; Heterostruktur; III-V Halbleiter; III-V semiconductors; time resolved photoluminescence; zeitaufgelöste Photolumineszenz

We demonstrate that transient four-wave mixing with time-resolved detection of the coherent nonlinear signal allows unambiguous experimental distinction between quantum beats and beats due to interfering polarizations of independent quantum-mechanical systems. The experimental demonstration is performed employing especially designed semiconductor quantum- well structures.