Quantum-mechanical wavepacket transport in quantum cascade laser structures
arXiv:cond-mat/0507410 · doi:10.1103/PhysRevB.73.245320
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.
6 pages, 5 figures included in tex, to appear in Physical Review B