Quantum kinetics of carrier capture processes into a quantum dot

Titelangaben

Kuhn, Tilmann ; Glanemann, Markus ; Axt, Vollrath Martin:
Quantum kinetics of carrier capture processes into a quantum dot.
In: Physica B: Condensed Matter. Bd. 314 (2002) Heft 1-4 . - S. 455-458.
ISSN 0921-4526
DOI: https://doi.org/10.1016/S0921-4526(01)01437-5

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Abstract

The capture of electrons moving in a quantum wire into an embedded quantum dot due to the interaction with optical phonons is studied on a quantum kinetic level within the density matrix approach. We find even at low temperatures where only phonon emission is possible a non-monotonic time-dependence of the bound state occupations due to virtual transitions. In the case of several bound dot states the capture in general results in a coherent superposition of these states.