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Quantum Mechanics: A Fundamental Approach
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Librairie Eyrolles - Paris 5e
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Quantum Mechanics: A Fundamental Approach

Quantum Mechanics: A Fundamental Approach

K. Kong Wan

696 pages, parution le 24/06/2019

Résumé

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.

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

K. Kong Wan is honorary reader in theoretical physics at St Andrews University, Scotland, UK. He studied theoretical physics at St Andrews, both as an undergraduate and a postgraduate, and was awarded a PhD in 1972. He stayed on at St Andrews and became a reader in theoretical physics. His research has focussed on the foundations and formalism of quantum mechanics.

Caractéristiques techniques

  PAPIER
Éditeur(s) Taylor&francis
Auteur(s) K. Kong Wan
Parution 24/06/2019
Nb. de pages 696
EAN13 9789814774659

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