Quantum mechanics David B. Beard ; with a preface by Dian Curran.

"This Dover edition, first published in 2014, is an unabridged republication of the work originally published in 1963 by Allyn and Bacon, Inc., Boston"--Title page verso.

Includes bibliographical references and index.

Black body radiation -- Fourier analysis -- Diffraction and interference of photons and particles -- The Feynman path integrals and the Schroedinger equation -- Use of the wave function to obtain physical properties of a system -- The consequences of abrupt changes in potential energy -- The WKB approximation and the Bohr-Sommerfeld quantum conditions -- Elementary three-dimensional wave functions in spherical coordinates -- Perturbation theory -- Time-dependent perturbation theory -- Chemical resonance theory -- Spin, symmetry, parity, and vector addition -- Elastic scattering theory -- Appendix: The vibrating string.