Fundamentals Of Modern Physics PDF
Preview Fundamentals Of Modern Physics
Fundamentals of MODERNPHYSICS givesanintegratedpresentationofrela tivitytheory, the old quantum theory, andquantummechanics,andthenuses thesetheories inamuchmoremature discussionof atomsand nuclei than isusualinmodern physicstexts. The author's analytical development of this area of physicsis approached onanintermediatelevel,andhemain tainsa gradual build-up in the com plexity of mathematical and physical arguments.Hisbookprovides:arapid but thorough treatment of the impor tant developments leading up to Schroedinger quantum mechanics; a careful introduction tothebasictheory of that subject, using an inductive rather than a postulatory approach; and illustrations of the theorythrough aoompletediscussionofa large num berof typical calculations. Finally, he usesthe theory to give a detailed ex planation of the properties of atoms andnuclei. Each topic is launched near its be ginning by means of arguments that presupporeoulya baekWrnmdin el~ mentary physics,and in mathematics through intermediate calculus. Professor Eisberg treats the various interactions present in multi-electron atoms, introducing these interactions one at atime inorder of decreasing importance,sothatacompletelylogical explanation of the complex features of the structure and spectra of these atomsisgiven. The discussion of nudei is bared upon a treatment of each of the im portantnuclearmodels,and theentire subjectof nuclearforcesisthoroughly reviewed. / / -. ---I FUNDAMENTALS OF MODERN PHYSICS FUNDAMENTALS OF ROBERT MARTIN EISBERG Associate Professor of Physics University of California Santa Barbara John Wiley & Sons,lnc., New York · London' Sydney MODERN PHYSICS FIFTH PRINTING, DECEMBER, 1964 Copyright © 1961 by John Wiley & Sons, Inc. All rights reserved. This book or any part thereof must not be reproduced in any form without the written permission of the publisher. Libraryof Congress Catalog Card Number: 61-6770 Printed in the United States of America Dedicated to JACOB LOUIS EISBERG Preface This book has evolved from mimeographed notes which I have been using at the University of Minnesota as a text for a one-year advanced undergraduate course in modern physics. Its selection of material re flects some definite ideas that I have concerning such a course. I am convinced that a modern course in modem physics should have two purposes: In addition to teaching many of the standard topics of the field, the course also should take full advantage of its unique oppor tunity to introduce the student to quantum mechanics at an early stage in his education, and in a way which integrates the theory into its his torical development and its applications. The introduction must be elementary, but it must not be cursory because such treatment would only amplify the problems that so often arise in a first contact with quantum mechanics. This program takes time, but it pays great divi dends by laying the foundation for a really mature discussion of the atom and the nucleus. A student can surely learn much more about these subjects in one year if half of it is invested in developing their theoretical bases than if all of it is spent in discussing them at an essen tially empirical level. The inclusion of more than the usual amount of quantum mechanics inthis book makes it necessary that there be certain omissions. Because most institutions now offer an undergraduate course in solid state phys ics, I have chosen most of the omissions from material that would be covered in such a course. Although there are items in the table of contents of this book which usually are found only in textbooks of a strictly postgraduate level, this should not be taken as a false indication of its prerequisites. I have tried to start near the beginning of each topic, and initially to employ vii
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