In a magnetic field, a wave function in a two-dimensional system is uniquely specified by the position of its nodes. We show that for high fields and a weak random potential, motion of the zeros of the wave function under smooth changes of the boundary conditions can be used to characterize the behavior of the one-electron states and distinguish between localized and extended states.
|Original language||English (US)|
|Number of pages||4|
|Journal||Physical review letters|
|State||Published - Jan 1 1988|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)