Physical Problems Solved by the Phase-Integral Method [Hardcover]

A mathematical approximation method important for many branches of theoretical physics, applied mathematics and engineering.This book covers one of the most efficient approximation methods for the theoretical analysis and solution of problems in theoretical physics and applied mathematics. The method can be applied to any field involving second order ordinary differential equations. It is written with practical needs in mind, with 50 solved problems covering a broad range of subjects and making clear which concepts and results of the general theory are needed in each case. Ideal as a reference for researchers and an introduction to advanced aspects of quantum mechanics for graduate students.This book covers one of the most efficient approximation methods for the theoretical analysis and solution of problems in theoretical physics and applied mathematics. The method can be applied to any field involving second order ordinary differential equations. It is written with practical needs in mind, with 50 solved problems covering a broad range of subjects and making clear which concepts and results of the general theory are needed in each case. Ideal as a reference for researchers and an introduction to advanced aspects of quantum mechanics for graduate students.This book covers one of the most efficient approximation methods for the theoretical analysis and solution of problems in theoretical physics and applied mathematics. The method can be applied to any field involving second order ordinary differential equations. It is written with practical needs in mind, with 50 solved problems covering a broad range of subjects and making clear which concepts and results of the general theory are needed in each case.Part I. Historical Survey: 1. History of an approximation method of wide importance in various branches of physics; Part II. Description of the Phase-Integral Method: 2. Form of the wave function and the q-equation; 3. Phase-integral approximation generated from an unslÃ-