Lifetimes of impurity states in crossed magnetic and electric fields

Details Lifetimes of impurity states in crossed magnetic and electric fields Lifetimes of impurity states in crossed magnetic and electric fields

1998-12-21

arxiv.org/abs/cond-mat/9812340v1

Physics

Condensed Matter

13 pages, no figures, submitted to J. Math. Phys

Scientific paper

10.1063/1.532886

We study the quantum dynamics of localized impurity states created by a point interaction for an electron moving in two dimensions under the influence of a perpendicular magnetic field and an in-plane weak electric field. All impurity states are unstable in presence of the electric field. Their lifetimes are computed and shown to grow in a Gaussian way as the electric field tends to zero.

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