Weak antilocalization of ultrarelativistic fermions
arXiv:physics/0505124 · doi:10.1016/j.physleta.2005.06.062
Abstract
The paper discusses the Berry phase influence on the weak localization phenomenon at the adiabatic backscattering of ultrarelativistic particles in a random medium. We demonstrate that bosons that pass along a certain closed path in opposite directions come back always in phase (an example: the backscattering enhancement of electromagnetic waves), whereas fermions come exactly in antiphase. This produces a "complete weak antilocalization" of ultrarelativistic fermions: the backscattering field intensity vanishes.
5 pages, 3 figures, to appear in Physics Letters A