Quantum-mechanical wavepacket transport in quantum cascade laser structures
S. -C. Lee, F. Banit, M. Woerner, A. Wacker
Abstract
We present a viewpoint of the transport process in quantum cascade laser structures in which spatial transport of charge through the structure is a property of coherent quantum-mechanical wavefunctions. In contrast, scattering processes redistribute particles in energy and momentum but do not directly cause spatial motion of charge.
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