Quantum states in disordered media. I. Low-pass filter approach
Quantum states in disordered media. I. Low-pass filter approach
The current burst in research activities on disordered semiconductors calls for the development of appropriate theoretical tools that reveal the features of electron states in random potentials while avoiding the time-consuming numerical solution of the Schr\"odinger equation. Among various approaches suggested so far, the low-pass filter approach of Halperin and …