Paul A. Dirac being one of the founders of Quantum Mechanics I bought this simply for knowing the pulse of the subject. Being only a novice on this subject I will not be able to review the book. I still feel this book should help a beginner for knowing the philosophy behind the development of the subject and some of the new functions introduced by the.
If you own this book, you can mail it to our address below. Not in Library. Want to Read. Download for print-disabled. Check nearby libraries Library. Share this book Facebook. Last edited by ImportBot. July 10, History. An edition of The Principles of Quantum Mechanics This edition was published in by Clarendon Press in Oxford [England] ,. New York. Written in English — pages. Libraries near you: WorldCat. The principles of quantum mechanics , Clarendon Press.
Borrow Listen. The principles of quantum mechanics. The things we are immediately aware of are the relations of these nearly invariants to a certain frame of reference, usually one chosen so as to introduce special simplifying features which are unimportant from the point of view of general theory.
The growth of the use of transformation theory, as applied first to relativity and later to the quantum theory, is the essence of the new method in theoretical physics. Further progress lies in the direction of making our equations invariant under wider and still wider transformations. This state of affairs is very satisfactory from a philosophical point of view, as implying an increasing recognition of the part played by the observer in himself introducing the regularities that appear in his observations, and a lack of arbitrariness in the ways of nature, but it makes things less easy for the learner of physics.
The new theories, if one looks apart from their mathematical setting, are built up from physical concepts which cannot be explained in terms of tilings previously known to the student, which cannot even be explained adequately in words at all.
Like the fundamental concepts e. From the mathematical side the approach to the new theories presents no difficulties, as the mathematics required at any rate that which is required for the development of physics up to the present is not essentially different from what has been current for a considerable time. Mathematics is the tool specially suited for dealing with abstract concepts of any kind and there is no limit to its power in this field.
For this reason a book on the new physics, if not purely descriptive of experimental work, must be essentially mathematical. In this book I have tried to keep the physics to the forefront, by beginning with an entirely physical chapter and in the later work examining the physical meaning underlying the formalism wherever possible.
The amount of theoretical ground one has to cover before being able to solve problems of real practical value is rather large, but this circumstance is an inevitable consequence of the fundamental part played by transformation theory and is likely to become more pronounced in the theoretical physics of the future. With regard to the mathematical form in which the theory can be presented, an author must decide at the outset between two methods. There is the symbolic method, which deals directly in an abstract way with the quantities of fundamental importance the invariants, etc.
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