Spin in a variable magnetic field: the adiabatic approximation
M. S. Marinov, Eugene Strahov
Abstract
The problem of spin precession in a time-dependent magnetic field is considered in the adiabatic approximation where the field direction or the angular velocity of its rotation is changing slowly. The precession angles are given by integrals in a way similar to the semi-classical approximation for the Schrödinger equation.
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