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Quantum Mechanics: A Fundamental Approach

Quantum Mechanics: A Fundamental Approach

Authors
Publisher Pan Stanford Publishing Pte Ltd
Year 25/06/2019
Pages 720
Version hardback
Readership level College/higher education
Language English
ISBN 9789814774659
Categories Quantum physics (quantum mechanics & quantum field theory)
$158.49 (with VAT)
704.55 PLN / €151.05 / £131.13
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Book description

The mathematical formalism of quantum theory in terms of vectors and operators in infinite-dimensional complex vector spaces is very abstract. The definitions of many mathematical quantities used do not seem to have an intuitive meaning, which makes it difficult to appreciate the mathematical formalism and understand quantum mechanics. This book provides intuition and motivation to the mathematics of quantum theory, introducing the mathematics in its simplest and familiar form, for instance, with three-dimensional vectors and operators, which can be readily understood. Feeling confident about and comfortable with the mathematics used helps readers appreciate and understand the concepts and formalism of quantum mechanics.


This book is divided into four parts. Part I is a brief review of the general properties of classical and quantum systems. A general discussion of probability theory is also included which aims to help in understanding the probability theories relevant to quantum mechanics. Part II is a detailed study of the mathematics for quantum mechanics. Part III presents quantum mechanics in a series of postulates. Six groups of postulates are presented to describe orthodox quantum systems. Each statement of a postulate is supplemented with a detailed discussion. To make them easier to understand, the postulates for discrete observables are presented before those for continuous observables. Part IV presents several illustrative applications, which include harmonic and isotropic oscillators, charged particle in external magnetic fields and the Aharonov-Bohm effect.


For easy reference, definitions, theorems, examples, comments, properties and results are labelled with section numbers. Various symbols and notations are adopted to distinguish different quantities explicitly and to avoid misrepresentation. Self-contained both mathematically and physically, the book is accessible to a wide readership, including astrophysicists, mathematicians and philosophers of science who are interested in the foundations of quantum mechanics. "This text is for graduate students who have had previous advanced undergraduate courses in quantum mechanics. The author has observed that students lack confidence with the mathematical formalisms of quantum mechanics. Consequently they cannot properly appreciate the complexities of the theory. The text addresses this by presenting the mathematics in its simplest form and then helping students develop an intuition for its use in quantum mechanics. This way the students are not lost in the mathematical abstractions. The book is well suited to this task. After a brief review of the fundamentals of classical and quantum systems, the majority of the book is offered in two sections. The first of these gives a very thorough presentation of the mathematical formalisms used in quantum mechanics. The second section details the quantum formalism. A final, relatively brief section considers applications. The author is successful in creating a resource that addresses his justifiable concerns about student understanding. This is a lot of material, and it may be best suited for a two-semester course. The first semester could cover the mathematics and the second the physics."


--E. Kincanon, Gonzaga University

Quantum Mechanics: A Fundamental Approach

Table of contents

Classical and quantum systems





Probability theories





Three-dimensional vectors and operators





Matrices





Generating probability distribution by self-adjoint operators and unit vectors in three dimensions





N-dimensional complex vectors and operators





Model theories based on N-dimensional vector spaces





Hilbert spaces and operators





Spectral theories for self-adjoint and unitary operators





Probability, self-adjoint operators and unit vectors





Physics of unitary transformation





Direct sums and tensor products of Hilbert spaces and operators





Quantum mechanics described by six groups of postulates





Superselection rules





Many-particle systems





Conceptual issues





Harmonic and isotropic oscillators





Angular momenta





Particles in static magnetic fields

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