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The Theory of Groups and Quantum Mechanics(英文原版进口)

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The Theory of Groups and Quantum Mechanics(英文原版进口)

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作 者:Hermann Weyl

出 版 社:Dover Publications

出版时间:1950 年6月

I S B N:0486602699

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内容简介

this book is devoted to the consistent and systematic application of group theory to' quantum mechanics. beginning with a detailed introduction to the classical theory of groups, dr. weyl continues with an account of the fundamental results of quantum physics. there follows a rigorous investigation of the relations holding between the mathematical and physical theories.
  topics covered include: unitary geometry, quantum theory (schr'odinger's wave equation, transition probabilities, directional quantization, collision phenomena, zeeman and stark effects); groups and their representations (sub-groups and conjugate classes, linear transformations, rotation and lorentz groups, closed continuous groups, invariants anti covariants, lie's theory); application of group theory to quantum mechanics (simple state and term analysis, the spinning electron, multiplet structure, energy and momentum, pauli exclusion principle, problem of several bodies, maxwell-dirac field equations, etc.); the symmetric permutation group; and algebra of symmetric transformation (invariant sub-spaces in group anti tensor space, sub-groups, young's symmetry operators, spin and valence, group theoretic classification of atomic spectra, branching laws, etc.). ..
  throughout, dr. weyl emphasizes the "reciprocity" between representations of the symmetric permutation group and those of the complete linear group. his simplified treatment of "reciprocity," the clebsch-gordan series, and the jordan-h61der theorem and its analogues, has helped to clarify these and other complex topics.
  second revised, corrected edition. translated by h. p. robertson. 3 appendices. bibliography. list of symbols. index, xviii + 422 pp. 5% x 81/2.paperbound. ...

作者简介

目录

author's prefaces.
translator's preface
introduction
chapter
i. unitary geometry
1. the n-dimensional vector space
2. linear correspondences. matrix calculus
3. the dual vector space
4. unitary geometry and hermitian forms
5. transformation to principal axes
6. infinitesimal unitary transformations
7. remarks on ∞-dimensional space
ii. quantum theory
1. physical foundations
2. the de broglie waves of a particle
3. schr6dinger's wave equation. the harmonic oscillator
4. spherical harmonics
5. electron in spherically symmetric field. directional quantization
6. collision phenomena
7. the conceptual structure of quantum mechanics
.8. the dynamical law. transition probabilities
9. perturbation theory
10. the problem of several bodies. product space
11. commutation rules. canonical transformations
12. motion of a particle in an electromagnetic field. zeeman effect and stark effect
13. atom in interaction with radiation
iii. groups and their representations
1. transformation groups
2. abstract groups and their realization
3. sub-groups and conjugate classes
4. representation of groups by linear transformations
5. formal processes. clebsch-gordan series
6. the jordan-h61der theorem and its analogues
7. unitary representations
8. rotation and lorentz groups
9. character of a representation
10. schur's lemma and burnside's theorem
11. orthogonality properties of group characters
12. extension to closed continuous groups
13. the algebra of a gioup
14. invariants and covariants
15. remarks on lie's theory of continuous groups of transformations
16. representation by rotations of ray space
iv. application of the theory of groups to quantum mechanics
a. the rotation group
1. the representation induced in system space by the rotation group
2. simple states and term analysis. examples
3. selection and intensity rules
4. the spinning electron, multiplet structure and anomalous zeeman effect
b. the lorentz group
5. relativistically lnvariant equations of motion of an electron
6. energy and momentum. remarks on the interchange of past and future
7. electron in spherically symmetric field
8. selection rules. fine structure..
c. the permutation group
9. resonance between equivalent individuals
10. the pauli exclusion principle and the structure of the
periodic table
ii. the problem of several bodies and the quantization of
the wave equation
12. quantization of the maxwell-dirac field equations
13. the energy and momentum laws of quantum physics.
relativistic invariance
d. quantum kinematics
14. quantum kinematics as an abelian group of rotations
15. derivation of the wave equation from the commutation
rules
v. the symmetric permutation group and the algebra of sym-metric transformations
a. general theory
1. the group induced in tensor space and the algebra of symmetric transformations
2. symmetry classes of tensors
3. invariant sub-spaces in group space
4. invariant sub-spaces in tensor space
5. fields and algebras
6. representations of algebras
7. constructive reduction of an algebra into simple matric
algebras
b. extension of the theory and physical applications
8. the characters of the symmetric group and equivalence
degeneracy in quantum mechanics
9. relation between the characters of the symmetric permutation and affine groups
12. direct product. sub-groups
11. perturbation theory for the construction of molecules
12. the symmetry problem of quantum theory.
c. explicit algebraic construction
13. young's symmetry operators
14. irreducibility, linear independence, inequivalence and
completeness
15. spin and valence. group-theoretic classification of atomic spectra
16. determination of the primitive characters of it and
17. calculation of volume on
18. branching laws
appendix
1. proof of an inequality
2. a composition property of group characters
3. a theorem concerning non-degenerate anti-symmetric bi-linear forms
bibliography
list of operational symbols
list of letters hawng a fixed significance
index...

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