Document Type

Article

Department/Program

Physics

Journal Title

Physical Review Letters

Pub Date

3-1972

Publisher

American Physical Society

Volume

28

Issue

11

First Page

647

Abstract

A general theory of the two-state curve-crossing problem has been developed, with a complete solution of an accurate model for "close" crossings (including numerical computations for strong coupling). Results clarify the position of the Landau-Zener approximation and its improvements by Nikitin and others, provide a general way of extending these approximations into regions often treated incorrectly (including the high-energy limit), and can be readily adapted to simple, rapid calculations.

DOI

https://doi.org/10.1103/PhysRevLett.28.647

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