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相变无疑是物理学中的最重要的现象之一。对于相变的研究贯穿整个物理学,甚至是人类文明史。而现代物理学中,与相变息息相关的一个方法就是重正化群方法,其概念和思想已经渗透于物理学的各个领域。《中外物理学精品书系:相变与重正化群(英文影印版)》的引进,能够供所有物理学领域的工作者作为参考。
内容简介
《中外物理学精品书系:相变与重正化群(英文影印版)》详细讨论了相变与重正化群的关系。特别是相变中的连续极限、相干长度及标度律等等。本书适合所有物理学领域的科研工作者和研究生阅读。
作者简介
(法)齐恩-朱斯坦,法国原子研究中心教授。
目录
1 Quantum field theory and the renormalization group . . . . . . . . . 1
1.1 Quantum electrodynamics: A quantum field theory . . . . . . . . . 3
1.2 Quantum electrodynamics: The problem of infinities . . . . . . . . 4
1.3 Renormalization . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Quantum field theory and the renormalization group . . . . . . . . 9
1.5 A triumph of QFT: The Standard Model . . . . . . . . . . . . . 10
1.6 Critical phenomena: Other infinities . . . . . . . . . . . . . . . 12
1.7 Kadanoff and Wilson’s renormalizationgroup . . . . . . . . . . . 14
1.8 Effective quantum field theories . . . . . . . . . . . . . . . . . 16
2 Gaussian expectation values. Steepest descent method . . . . . . . . 19
2.1 Generating functions . . . . . . . . . . . . . . . . . . . . . . 19
2.2 Gaussian expectation values.Wick’s theorem . . . . . . . . . . . 20
2.3 Perturbed Gaussian measure. Connected contributions . . . . . . . 24
2.4 Feynman diagrams. Connected contributions . . . . . . . . . . . . 25
2.5 Expectation values. Generating function. Cumulants . . . . . . . . 28
2.6 Steepest descent method . . . . . . . . . . . . . . . . . . . . 31
2.7 Steepest descent method: Several variables, generating functions . . . 37
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3 Universality and the continuum limit . . . . . . . . . . . . . . . . . 45
3.1 Central limit theorem of probabilities . . . . . . . . . . . . . . . 45
3.2 Universality and fixed points of transformations . . . . . . . . . . 54
3.3 Random walk and Brownian motion . . . . . . . . . . . . . . . 59
3.4 Random walk: Additional remarks . . . . . . . . . . . . . . . . 71
3.5 Brownian motion and path integrals . . . . . . . . . . . . . . . 72
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4 Classical statistical physics: One dimension . . . . . . . . . . . . . . 79
4.1 Nearest-neighbour interactions. Transfer matrix . . . . . . . . . . 80
4.2 Correlation functions . . . . . . . . . . . . . . . . . . . . . . 83
4.3 Thermodynamic limit . . . . . . . . . . . . . . . . . . . . . . 85
4.4 Connected functions and cluster properties . . . . . . . . . . . . 88
4.5 Statistical models: Simple examples . . . . . . . . . . . . . . . 90
4.6 The Gaussian model . . . . . . . . . . . . . . . . . . . . . . 924.7 Gaussian model: The continuumlimit . . . . . . . . . . . . . . . 98
4.8 More general models: The continuumlimit . . . . . . . . . . . 102
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
5 Continuum limit and path integrals . . . . . . . . . . . . . . . . 111
5.1 Gaussian path integrals . . . . . . . . . . . . . . . . . . . . 111
5.2 Gaussian correlations.Wick’s theorem . . . . . . . . . . . . . 118
5.3 Perturbed Gaussian measure . . . . . . . . . . . . . . . . . . 118
5.4 Perturbative calculations: Examples . . . . . . . . . . . . . . 120
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
6 Ferromagnetic systems. Correlation functions . . . . . . . . . . . 127
6.1 Ferromagnetic systems: Definition . . . . . . . . . . . . . . . 127
6.2 Correlation functions. Fourier representation . . . . . . . . . . . 133
6.3 Legendre transformation and vertex functions . . . . . . . . . . 137
6.4 Legendre transformation and steepest descent method . . . . . . . 142
6.5 Two- and four-point vertex functions . . . . . . . . . . . . . . 143
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
7 Phase transitions: Generalities and examples . . . . . . . . . . . . 147
7.1 Infinite temperature or independent spins . . . . . . . . . . . . 150
7.2 Phase transitions in infinite dimension . . . . . . . . . . . . . 153
7.3 Universality in infinite space dimension . . . . . . . . . . . . . 158
7.4 Transformations, fixed points and universality . . . . . . . . . . 161
7.5 Finite-range interactions in finite dimension . . . . . . . . . . . 163
7.6 Ising model: Transfer matrix . . . . . . . . . . . . . . . . . . 166
7.7 Continuous symmetries and transfer matrix . . . . . . . . . . . 171
7.8 Continuous symmetries and Goldstone modes . . . . . . . . . . 173
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
8 Quasi-Gaussian approximation: Universality, critical dimension . . . . 179
8.1 Short-range two-spin interactions . . . . . . . . . . . . . . . . 181
8.2 The Gaussian model: Two-point function . . . . . . . . . . . . 183
8.3 Gaussian model and random walk . . . . . . . . . . . . . . . 188
8.4 Gaussian model and field integral . . . . . . . . . . . . . . . . 190
8.5 Quasi-Gaussian approximation . . . . . . . . . . . . . . . . . 194
8.6 The two-point function: Universality . . . . . . . . . . . . . . 196
8.7 Quasi-Gaussian approximation and Landau’s theory . . . . . . . 199
8.8 Continuous symmetries and Goldstone modes . . . . . . . . . . 200
8.9 Corrections to the quasi-Gaussian approximation . . . . . . . . . 202
8.10 Mean-field approximation and corrections . . . . . . . . . . . 207
8.11 Tricritical points . . . . . . . . . . . . . . . . . . . . . . 211
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
9 Renormalization group: General formulation . . . . . . . . . . . . 217
9.1 Statistical field theory. Landau’s Hamiltonian . . . . . . . . . . 218
9.2 Connected correlation functions. Vertex functions . . . . . . . . 220
9.3 Renormalization group: General idea . . . . . . . . . . . . . . 222
9.4 Hamiltonian flow: Fixed points, stability . . . . . . . . . . . . 226
9.5 The Gaussian fixed point . . . . . . . . . . . . . . . . . . . 2319.6 Eigen-perturbations: General analysis . . . . . . . . . . . . . . 234
9.7 A non-Gaussian fixed point: The ε-expansion . . . . . . . . . . 237
9.8 Eigenvalues and dimensions of local polynomials . . . . . . . . . 241
10 Perturbative renormalization group: Explicit calculations . . . . . . 243
10.1 Critical Hamiltonian and perturbative expansion . . . . . . . . 243
10.2 Feynman diagrams at one-loop order . . . . . . . . . . . . . . 246
10.3 Fixed point and critical behaviour . . . . . . . . . . . . . . . 248
10.4 Critical domain . . . . . . . . . . . . . . . . . . . . . . . 254
10.5 Models with O(N) orthogonal symmetry . . . . . . . . . . . . 258
10.6 Renormalization group near dimension 4 . . . . . . . . . . . . 259
10.7 Universal quantities: Numerical results . . . . . . . . . . . . . 262
11 Renormalization group: N-component fields . . . . . . . . . . . . 267
11.1 Renormalization group: General remarks . . . . . . . . . . . . 268
11.2 Gradient flow . . . . . . . . . . . . . . . . . . . . . . . . 269
11.3 Model with cubic anisotropy . . . . . . . . . . . . . . . . . 272
11.4 Explicit general expressions: RG analysis . . . . . . . . . . . . 276
11.5 Exercise: General model with two parameters . . . . . . . . . . 281
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
12 Statistical field theory: Perturbative expansion . . . . . . . . . . 285
12.1 Generating functionals . . . . . . . . . . . . . . . . . . . . 285
12.2 Gaussian field theory.Wick’s theorem . . . . . . . . . . . . . 287
12.3 Perturbative expansion . . . . . . . . . . . . . . . . . . . . 289
12.4 Loop expansion . . . . . . . . . . . . . . . . . . . . . . . 296
12.5 Dimensional continuation and regularization . . . . . . . . . . 299
Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
13 The σ4 field theory near dimension 4 . . . . . . . . . . . . . . . 307
13.1 Effective Hamiltonian. Renormalization . . . . . . . . . . . . 308
13.2 Renormalization group equations . . . . . . . . . . . . . . . 313
13.3 Solution of RGE: The ε-expansion . . . . . . . . . . . . . . . 316
13.4 Effective and renormalized interactions . . . . . . . . . . . . . 323
13.5 The critical domain above Tc . . . . . . . . . . . . . . . . . 324
14 The O(N) symmetric (φ2)2 field theory in the large N limit . . . . 329
14.1 Algebraic preliminaries . . . . . . . . . . . . . . . . . . . . 330
14.2 Integration over the field φ: The determinant . . . . . . . . . . 331
14.3 The limit N →∞: The critic
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