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kunstatter gabor; das saurya - a first course on symmetry, special relativity and quantum mechanics

A First Course on Symmetry, Special Relativity and Quantum Mechanics The Foundations of Physics

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Genere:Libro
Lingua: Inglese
Editore:

Springer

Pubblicazione: 02/2022
Edizione: 2nd ed. 2022





Trama

This book provides an in-depth and accessible description of special relativity and quantum mechanics which together form the foundation of 21st century physics. A novel aspect  is that symmetry is given its rightful prominence as an integral part of this foundation. The book offers not only a conceptual understanding of symmetry, but also the mathematical tools necessary for quantitative analysis. As such, it provides a valuable precursor to more focused, advanced books on special relativity or quantum mechanics.

Students are introduced to several topics not typically covered until much later in their education.These include space-time diagrams, the action principle, a proof of Noether's theorem, Lorentz vectors and tensors, symmetry breaking and general relativity. The book also provides extensive descriptions on topics of current general interest such as gravitational waves, cosmology, Bell's theorem, entanglement and quantum computing.

Throughout the text, every opportunity is taken to emphasize the intimate connection between physics, symmetry and mathematics.The style remains light despite the rigorous and intensive content. 

The book is intended as a stand-alone or supplementary physics text for a one or two semester course for students who have completed an introductory calculus course and a first-year physics course that includes Newtonian mechanics and some electrostatics. Basic knowledge of linear algebra is useful but not essential, as all requisite mathematical background is provided either in the body of the text or in the Appendices. Interspersed through the text are well over a hundred worked examples and unsolved exercises for the student.






Sommario

1 Introduction 9
1.1 The goal of physics . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 The connection between physics and mathematics . . . . . . . 10
1.3 Paradigm shifts . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.4 The Correspondence Principle . . . . . . . . . . . . . . . . . . 16
2 Symmetry and Physics 17
2.1 Learning Outcomes . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2 What is Symmetry? . . . . . . . . . . . . . . . . . . . . . . . . 17
2.3 Role of Symmetry in Physics . . . . . . . . . . . . . . . . . . . 18
2.3.1 Symmetry as a guiding principle . . . . . . . . . . . . . 18
2.3.2 Symmetry and Conserved Quantities: Noether's Theorem
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3.3 Symmetry as a tool for simplifying problems . . . . . . 19
2.4 Symmetries were made to be broken . . . . . . . . . . . . . . 20
2.4.1 Spacetime symmetries . . . . . . . . . . . . . . . . . . 20
2.4.2 Parity violation . . . . . . . . . . . . . . . . . . . . . . 21
2.4.3 Spontaneously broken symmetries . . . . . . . . . . . . 24
2.4.4 Variational calculations: Lifeguards and light rays . . . 27
3 Formal Aspects of Symmetry 30
3.1 Learning outcomes . . . . . . . . . . . . . . . . . . . . . . . . 30
3.2 Symmetries and Operations . . . . . . . . . . . . . . . . . . . 30
3.2.1 Denition of a symmetry operation . . . . . . . . . . . 30
3.2.2 Rules obeyed by symmetry operations . . . . . . . . . 32
3.2.3 Multiplication tables . . . . . . . . . . . . . . . . . . . 35
3.2.4 Symmetry and group theory . . . . . . . . . . . . . . . 36
3.3 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.3.1 The identity operation . . . . . . . . . . . . . . . . . . 37
3.3.2 Permutations of two identical objects . . . . . . . . . . 37
3.3.3 Permutations of three identical objects . . . . . . . . . 38
3.3.4 Rotations of regular polygons . . . . . . . . . . . . . . 39
3.4 Continuous vs discrete symmetries . . . . . . . . . . . . . . . 40
3.5 Symmetries and Conserved Quantities:
Noether's Theorem . . . . . . . . . . . . . . . . . . . . . . . . 41
3.6 Supplementary: Variational Mechanics and the Proof of Noether's
Theorem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.6.1 Variational Mechanics: Principle of Least Action . . . . 42
3.6.2 Euler-Lagrange Equations . . . . . . . . . . . . . . . . 47
3.6.3 Proof of Noether's Theorem . . . . . . . . . . . . . . . 48
4 Symmetries and Linear Transformations 52
4.1 Learning outcomes . . . . . . . . . . . . . . . . . . . . . . . . 52
4.2 Review of Vectors . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2.1 Coordinate free denitions . . . . . . . . . . . . . . . . 53
4.2.2 Cartesian Coordinates . . . . . . . . . . . . . . . . . . 58
4.2.3 Vector operations in component form . . . . . . . . . . 59
4.2.4 Position vector . . . . . . . . . . . . . . . . . . . . . . 60
4.2.5 Dierentiation of vectors: velocity and acceleration . . 62
4.3 Linear Transformations . . . . . . . . . . . . . . . . . . . . . . 63
4.3.1 Denition . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.3.2 Translations . . . . . . . . . . . . . . . . . . . . . . . . 64
4.3.3 Rotations . . . . . . . . . . . . . . . . . . . . . . . . . 66
4.3.4 Re
ections . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.4 Linear Transformations and matrices . . . . . . . . . . . . . . 68
4.4.1 Linear transformations as matrices . . . . . . . . . . . 68
4.4.2 Identity Transformation and Inverses . . . . . . . . . . 70
4.4.3 Rotations . . . . . . . . . . . . . . . . . . . . . . . . . 70
4.4.4 Re
ections . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.4.5 Matrix Representation of Permutations of Three Objects 73
4.5 Pythagoras and Geometry . . . . . . . . . . . . . . . . . . . . 74
5 Special Relativity I: The Basics 77
5.1 Learning Outcomes . . . . . . . . . . . . . . . . . . . . . . . . 77
5.2 Preliminaries . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
5.2.1 Frames
5.2.2 Spacetime Diagrams . . . . . . . . . . . . . . . . . . . 78
5.2.3 Newtonian Relativity and Galilean Transformations . . 83
5.3 Derivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5.3.1 The Fundamental Postulate . . . . . . . . . . . . . . . 85
5.3.2 The problem with Galilean Relativity . . . . . . . . . . 85
5.3.3 Michelson-Morley Experiment . . . . . . . . . . . . . . 87
5.3.4 Maxwell's Equations . . . . . . . . . . . . . . . . . . . 90
5.4 Summary of Consequences . . . . . . . . . . . . . . . . . . . . 91
5.5 Relativity of Simultaneity . . . . . . . . . . . . . . . . . . . . 92
5.6 Time Dilation . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
5.6.1 Derivation: . . . . . . . . . . . . . . . . . . . . . . . . 97
5.6.2 Proper Time . . . . . . . . . . . . . . . . . . . . . . . . 99
5.6.3 Experimental Conrmation . . . . . . . . . . . . . . . 101
5.6.4 Examples . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.7 Lorentz Contraction . . . . . . . . . . . . . . . . . . . . . . . 104
5.7.1 Derivation . . . . . . . . . . . . . . . . . . . . . . . . . 104
5.7.2 Properties: . . . . . . . . . . . . . . . . . . . . . . . . . 104
5.7.3 Proper Length and Proper Distance. . . . . . . . . . . 104
5.7.4 Examples: . . . . . . . . . . . . . . . . . . . . . . . . . 105
6 Special Relativity II: In Depth 110
6.1 Learning Outcomes . . . . . . . . . . . . . . . . . . . . . . . . 110
6.2 Lorentz Transformations . . . . . . . . . . . . . . . . . . . . . 110
6.2.1 Derivation of general form . . . . . . . . . . . . . . . . 110
6.2.2 Properties of Lorentz Transformations . . . . . . . . . 113
6.2.3 Lorentzian Geometry . . . . . . . . . . . . . . . . . . . 116
6.3 The Light Cone . . . . . . . . . . . . . . . . . . . . . . . . . . 119
6.4 Proper time revisited . . . . . . . . . . . . . . . . . . . . . . . 120
6.5 Relativistic Addition of Velocities . . . . . . . . . . . . . . . . 122
6.6 Relativistic Doppler Shift . . . . . . . . . . . . . . . . . . . . . 124
6.6.1 Non-relativistic Doppler Shift Review . . . . . . . . . . 124
6.6.2 Relativistic Doppler Shift . . . . . . . . . . . . . . . . 124
6.7 Relativistic Energy and Momentum . . . . . . . . . . . . . . . 127
6.7.1 Relativistic Energy Momentum Conservation . . . . . . 127
6.7.2 Relativistic Inertia . . . . . . . . . . . . . . . . . . . . 128
6.7.3 Relativistic Energy . . . . . . . . . . . . . . . . . . . . 129
6.7.4 Relativistic Three-Momentum . . . . . . . . . . . . . . 129
6.7.5 Relationship Between Relativistic Energy and Momentum
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
6.7.6 Kinetic energy: . . . . . . . . . . . . . . . . . . . . . . 130
6.7.7 Massless particles . . . . . . . . . . . . . . . . . . . . 131
6.8 Space-time Vectors . . . . . . . . . . . . . . . . . . . . . . . . 133
6.8.1 Position Four-Vector: . . . . . . . . . . . . . . . . . . . 134
6.8.2 Four-momentum: . . . . . . . . . . . . . . . . . . . . . 135
6.8.3 Null four-vectors . . . . .




Autore

Gabor Kunstatter is a theoretical physicist who has worked on general relativity, gauge theory quantization, finite temperature quantum field theory, quantum computing and quantum gravity. His current research focuses on the quantum mechanics of black holes, quantum information and effective theories for non-singular black hole evaporation and evaporation. Dr. Kunstatter is Professor Emeritus at the University of Winnipeg and Adjunct Professor at the University of Victoria, Simon Fraser University and the University of Manitoba. He has been a visiting scientist at a variety of institutions, including M.I.T., Université de Paris (Orsay), UNAM (Mexico), University of Nottingham and CECS (Chile). Dr. Kunstatter has also served as the President of the Canadian Association of Physicists and as Dean of Science at the University of Winnipeg.

Saurya Das is a theoretical physicist whose research areas include quantum gravity theory and phenomenology and cosmology. He has worked on problems in black hole physics, testing signatures of quantum gravity in the laboratory and on dark matter and dark energy, on which he has published more than 80 papers. After doing postdoctoral research at the Pennsylvania State University and the Universities of Winnipeg and New Brunswick, Dr. Das joined the faculty the University of Lethbridge, Canada in 2003, where he is now a full professor.

 












Altre Informazioni

ISBN:

9783030923457

Condizione: Nuovo
Collana: Undergraduate Lecture Notes in Physics
Dimensioni: 235 x 155 mm Ø 646 gr
Formato: Brossura
Illustration Notes:XXXI, 391 p. 94 illus., 82 illus. in color.
Pagine Arabe: 391
Pagine Romane: xxxi


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