Quantum-mechanical wavepacket transport in quantum cascade laser structures

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

References in corpus (2)

• Self-Consistent Theory of the Gain Linewidth for Quantum Cascade Lasers
• Non-Equilibrium Green Functions in Electronic Device Modeling

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