Preface |
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xi | |
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Notes on Mathematical Terminology Used in This Book |
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xi | |
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xii | |
Thanks |
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xiii | |
Author |
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xv | |
Introduction |
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1 | (1) |
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Beyond General Relativity |
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2 | (1) |
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3 | (2) |
1 Four Keystones |
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5 | (1) |
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1.2 Galileo and the Tower of Pisa |
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5 | (4) |
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1.2.1 Galileo and the Laws of Motion |
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9 | (1) |
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9 | (6) |
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1.3.1 Universal Gravitation |
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13 | (1) |
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1.3.2 Inertial and Gravitational Masses |
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14 | (1) |
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1.4 Eddington and the 1919 Eclipse |
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15 | (6) |
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1.5 LIGO and the Search for Gravitational Waves |
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21 | (4) |
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25 | (1) |
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25 | (2) |
2 The Road to Relativity |
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27 | (1) |
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2.2 The Origins of Special Relativity |
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28 | (18) |
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2.2.1 Einstein and Electromagnetism |
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28 | (1) |
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2.2.2 Magnets and Circuits |
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29 | (2) |
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2.2.3 Magnetic and Electric Fields |
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31 | (1) |
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2.2.4 Galilean Transformations |
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32 | (2) |
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2.2.5 Transforming Velocities |
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34 | (2) |
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36 | (1) |
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2.2.7 Inertial and Non-Inertial Systems |
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37 | (3) |
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2.2.8 Maxwell's Equations |
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40 | (1) |
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2.2.9 The Michelson-Morley Experiment |
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41 | (5) |
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2.3 Relativistic Systems of Co-ordinates |
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46 | (3) |
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2.4 The Lorentz Transformations |
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49 | (4) |
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2.4.1 History of the Lorentz Transformations |
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52 | (1) |
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53 | (1) |
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53 | (2) |
3 The Theory of Special Relativity |
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3.1 Rotation for Fun and Profit |
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55 | (1) |
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3.2 Working with Matrices |
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56 | (4) |
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57 | (1) |
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3.2.2 Multiplying Matrices |
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57 | (1) |
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58 | (1) |
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3.2.4 Transposes and Symmetry |
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59 | (1) |
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3.2.5 The Rotation Matrix |
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59 | (1) |
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60 | (2) |
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62 | (1) |
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63 | (3) |
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3.6 The Space-time Interval |
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66 | (2) |
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66 | (1) |
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67 | (1) |
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3.7 The Search for Lorentz Vectors |
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68 | (4) |
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70 | (2) |
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72 | (1) |
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3.9 Transforming Maxwell's Equations |
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72 | (5) |
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77 | (5) |
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3.10.1 Covariant and Contravariant |
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77 | (3) |
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3.10.2 Transforming Tensors |
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80 | (1) |
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3.10.3 The Electromagnetic Field Tensor |
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81 | (1) |
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82 | (1) |
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82 | (3) |
4 Space-time |
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4.1 Events and World Lines |
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85 | (1) |
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85 | (6) |
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4.2.1 Newtonian Space-time |
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86 | (3) |
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4.2.2 Lorentzian Space-time |
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89 | (2) |
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4.3 The Past, the Future and the Elsewhere |
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91 | (9) |
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4.3.1 Time-Like Intervals |
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92 | (2) |
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4.3.2 Absolute Past, Absolute Future |
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94 | (3) |
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4.3.3 Space-Like Intervals |
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97 | (1) |
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97 | (2) |
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99 | (1) |
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100 | (3) |
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103 | (2) |
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4.5.1 Experimental Confirmation |
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105 | (1) |
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4.6 Note for the Beginner |
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105 | (1) |
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4.7 Metrics and the Geometry of Space-time |
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106 | (3) |
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109 | (2) |
5 Mass, Energy and Dust |
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5.1 4-Velocity and Newtonian Velocity |
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111 | (3) |
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112 | (1) |
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5.1.2 Enter Energy, Stage Left, Looking Tired |
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113 | (1) |
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114 | (2) |
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116 | (1) |
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116 | (7) |
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117 | (1) |
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118 | (1) |
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119 | (2) |
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5.3.4 Higgs Fields and Higgs Particles |
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121 | (1) |
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5.3.5 The Photon Loop-Hole |
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121 | (2) |
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5.4 Mass, Energy and Gravitation |
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123 | (4) |
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125 | (2) |
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127 | (8) |
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5.5.1 The Energy of Density of Dust |
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129 | (4) |
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5.5.2 The Physical Meaning of the Tensor's Terms |
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133 | (2) |
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5.5.3 Deriving General Relativity |
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135 | (1) |
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135 | (2) |
6 Generalising Relativity |
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6.1 The Problem with History... |
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137 | (1) |
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6.2 The Quest for a General Theory of Relativity |
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138 | (2) |
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6.3 Einstein's Principles of General Relativity |
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140 | (9) |
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6.3.1 The Principle of Equivalence |
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140 | (3) |
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6.3.2 The General Principle of Relativity |
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143 | (2) |
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145 | (4) |
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149 | (1) |
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149 | (2) |
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151 | (4) |
7 The Theory of General Relativity |
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7.1 A Toolkit for the General Theory |
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155 | (1) |
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7.2 Generalised Co-ordinates |
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155 | (3) |
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7.3 Rates of Change for Generalised Co-ordinates |
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158 | (6) |
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7.3.1 Summation, Metrics and Christoffel Symbols |
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161 | (3) |
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7.4 Acceleration in Curved Space-time |
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164 | (3) |
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7.5 General Co-ordinate Transformations |
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167 | (6) |
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7.5.1 Lorentz Transformations of Axis Vectors |
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167 | (2) |
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7.5.2 General Transformations |
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169 | (3) |
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7.5.3 Transforming Christoffel Symbols |
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172 | (1) |
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173 | (6) |
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7.6.1 Properties of the Riemann Tensor |
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176 | (1) |
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7.6.2 An Unfortunate Number of Indices |
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177 | (1) |
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7.6.3 And Finally, the Field Equations of General Relativity |
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178 | (1) |
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179 | (4) |
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7.7.1 The Complexity of the Field Equations |
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181 | (1) |
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7.7.2 Solving the Field Equations |
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181 | (1) |
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7.7.3 The Gravitational Field in General Relativity |
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182 | (1) |
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183 | (2) |
8 Weak Field Gravitation |
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8.1 Linearising the Field Equations |
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185 | (11) |
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186 | (1) |
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8.1.2 The First Newtonian Limit |
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187 | (1) |
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8.1.3 The Second Newtonian Limit |
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188 | (4) |
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8.1.4 Weak Field Schwarzschild Metric |
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192 | (3) |
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8.1.5 Free Fall in the Schwarzschild Weak Field |
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195 | (1) |
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8.2 Gravitational Time Dilation |
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196 | (4) |
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8.2.1 Global Positioning Systems |
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198 | (2) |
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8.3 Gravitational Frequency Shift |
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200 | (5) |
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8.3.1 Gravitational Frequency Shift from the Equivalence Principle |
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202 | (1) |
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8.3.2 Quantum Approach to Frequency Shift |
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202 | (1) |
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8.3.3 Gravitational Redshift |
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203 | (1) |
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8.3.4 Confirmation of Gravitational Frequency Shift |
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204 | (1) |
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205 | (2) |
9 Space-time in the General Theory |
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9.1 Metrics and Dimensionality |
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207 | (8) |
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9.1.1 Embedding Space and Embedding Diagrams |
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208 | (1) |
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9.1.2 The Embedding Diagram for Schwarzschild Space-time |
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208 | (5) |
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213 | (2) |
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9.2 Space-time Intervals in the General Theory |
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215 | (8) |
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216 | (2) |
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218 | (2) |
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9.2.3 The Ricci Tensor Rides Again |
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220 | (1) |
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9.2.4 Light Cones in the General Theory |
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221 | (1) |
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222 | (1) |
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9.3 Proper Time Intervals |
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223 | (5) |
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9.3.1 Proper Time Intervals in the General Theory |
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226 | (2) |
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228 | (1) |
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229 | (2) |
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231 | (2) |
10 Black Holes |
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10.1 Gravitational Collapse |
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233 | (5) |
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233 | (5) |
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238 | (5) |
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10.2.1 Co-ordinate Singularities |
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238 | (2) |
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10.2.2 Geodesics in E-F Co-ordinates |
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240 | (2) |
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10.2.3 Unavoidable Singularities |
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242 | (1) |
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10.3 Falling Towards a Black Hole |
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243 | (6) |
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246 | (1) |
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10.3.2 Geodesic Deviation Destruction |
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247 | (1) |
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10.3.3 Inside the Schwarzschild Radius |
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248 | (1) |
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249 | (4) |
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251 | (1) |
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251 | (2) |
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10.5 Rotating Black Holes |
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253 | (6) |
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254 | (1) |
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10.5.2 Consistency of the Kerr Metric |
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254 | (1) |
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10.5.3 Singularities in the Kerr Metric |
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255 | (1) |
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256 | (1) |
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10.5.5 System Dragging of Light |
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257 | (2) |
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10.5.6 Left-Over Solutions |
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259 | (1) |
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259 | (2) |
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261 | (2) |
11 Gravitational Waves |
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11.1 The Hulse-Taylor Pulsar System |
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263 | (3) |
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266 | (4) |
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11.2.1 Linear Field Equations |
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267 | (1) |
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11.2.2 Weak(ish) Gravitation |
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268 | (2) |
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11.3 Gravitational Wave Theory |
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270 | (7) |
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271 | (1) |
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11.3.2 Gravitational Wave Solutions |
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272 | (1) |
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11.3.3 Polarisation of Gravitational Waves |
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273 | (2) |
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11.3.4 Particle Motion Under the Influence of Gravitational Waves |
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275 | (2) |
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11.4 Energy in General Relativity |
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277 | (5) |
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11.4.1 The Mass of a Relativistic Source |
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278 | (1) |
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279 | (1) |
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11.4.3 Energy for Isolated Systems |
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279 | (2) |
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11.4.4 Energy in Gravitational Waves |
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281 | (1) |
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282 | (1) |
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11.6 LIGO's Detection of Neutron Star Merger |
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283 | (1) |
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11.7 Next Steps in Gravitational Wave Research |
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284 | (2) |
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286 | (1) |
12 Cosmology |
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287 | (1) |
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12.2 The Foundations of Cosmology |
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287 | (4) |
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288 | (2) |
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290 | (1) |
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12.3 Universal Metrics and Symmetry |
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291 | (8) |
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12.3.1 Proper Distances and Expansion |
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294 | (2) |
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296 | (1) |
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296 | (3) |
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12.4 The Friedmann Equations |
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299 | (4) |
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12.4.1 Phases of Evolution |
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301 | (2) |
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12.4.2 Friedmann Equations with Density |
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303 | (1) |
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12.5 The Recipe for the Universe |
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303 | (7) |
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12.5.1 The Age of the Universe |
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306 | (1) |
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12.5.2 The Temperature of the Universe |
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306 | (1) |
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12.5.3 The Evolution of the Universe |
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307 | (3) |
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310 | (5) |
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12.6.1 Accelerating Expansion |
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313 | (2) |
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315 | (2) |
13 Quantum Considerations |
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317 | (3) |
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13.1.1 The Domain of Quantum Gravity |
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318 | (2) |
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13.2 Quantum Field Theory |
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320 | (5) |
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321 | (1) |
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321 | (1) |
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322 | (1) |
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13.2.4 Quantum Field Theories of Interactions |
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323 | (1) |
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13.2.5 QFT Meets Gravitation |
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324 | (1) |
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13.2.6 Gravitation Meets QFT |
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324 | (1) |
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325 | (10) |
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326 | (1) |
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13.3.2 Killing Vectors and Conserved Quantities |
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327 | (2) |
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13.3.3 Positive Energy, Negative Energy and the Flow of Time |
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329 | (1) |
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13.3.4 The Penrose Process Again |
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330 | (1) |
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13.3.5 And Finally, Hawking Radiation |
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331 | (3) |
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13.3.6 Black Hole Evaporation |
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334 | (1) |
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335 | (6) |
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13.4.1 The Horizon Problem |
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335 | (1) |
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13.4.2 Expanding Our Horizons |
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336 | (1) |
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13.4.3 The Inflation Field |
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336 | (4) |
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13.4.4 Refilling the Universe |
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340 | (1) |
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341 | (1) |
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341 | (2) |
Bibliography |
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343 | (2) |
Index |
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345 | |