|
Introduction |
1 |
1 |
From absolute space and time to influenceable spacetime: an overview |
3 |
1.1 |
Definition of relativity |
3 |
1.2 |
Newton's laws and intertial frames |
4 |
1.3 |
The Galilean transformation |
5 |
1.4 |
Newtonian relativity |
6 |
1.5 |
Objections to absolute space; Mach's principle |
7 |
1.6 |
The ether |
9 |
1.7 |
Michelson and Morley's search for the ether |
9 |
1.8 |
Lorentz's ether theory |
10 |
1.9 |
Origins of special relativity |
12 |
1.10 |
Further arguments for Einstein's two postulates |
14 |
1.11 |
Cosmology and first doubts about inertial frames |
15 |
1.12 |
Inertial and gravitational mass |
16 |
1.13 |
Einstein's equivalence principle |
18 |
1.14 |
Preview of general relativity |
20 |
1.15 |
Caveats on the equivalence principle |
22 |
1.16 |
Gravitational frequency shift and light bending |
24 |
|
Exercises 1 |
27 |
I |
Special Relativity |
31 |
2 |
Foundations of special relativity; The Lorentz transformation |
33 |
2.1 |
On the nature of physical theories |
33 |
2.2 |
Basic features of special relativity |
34 |
2.3 |
Relativistic problem solving |
36 |
2.4 |
Relativity of simultaneity, time-dilation and length-contraction: a preview |
38 |
2.5 |
The relativity principle and the homogeneity and isotropy of inertial frames |
39 |
2.6 |
The coordinate lattice; Definitions of simultaneity |
41 |
2.7 |
Derivation of the Lorentz transformation |
43 |
2.8 |
Properties of the Lorentz transformation |
47 |
2.9 |
Graphical representation of the Lorentz transformation |
49 |
2.10 |
The relativistic speed limit |
54 |
2.11 |
Which transformations are allowed by the relativity principle? |
57 |
|
Exercises 2 |
58 |
3 |
Relativistic kinematics |
61 |
3.1 |
Introduction |
61 |
3.2 |
World-picture and world-map |
61 |
3.3 |
Length contraction |
62 |
3.4 |
Length contraction paradox |
63 |
3.5 |
Time dilation; The twin paradox |
64 |
3.6 |
Velocity transformation; Relative and mutual velocity |
68 |
3.7 |
Acceleration transformation; Hyperbolic motion |
70 |
3.8 |
Rigid motion and the uniformly accelerated rod |
71 |
|
Exercises 3 |
73 |
4 |
Relativistic optics |
77 |
4.1 |
Introduction |
77 |
4.2 |
The drag effect |
77 |
4.3 |
The Doppler effect |
78 |
4.4 |
Aberration |
81 |
4.5 |
The visual appearance of moving objects |
82 |
|
Exercises 4 |
85 |
5 |
Spacetime and four-vectors |
89 |
5.1 |
The discovery of Minkowski space |
89 |
5.2 |
Three-dimensional Minkowski diagrams |
90 |
5.3 |
Light cones and intervals |
91 |
5.4 |
Three-vectors |
94 |
5.5 |
Four-vectors |
97 |
5.6 |
The geometry of four-vectors |
101 |
5.7 |
Plane waves |
103 |
|
Exercises 5 |
105 |
6 |
Relativistic particle mechanics |
108 |
6.1 |
Domain of sufficient validity of Newtonian mechanics |
108 |
6.2 |
The axioms of the new mechanics |
109 |
6.3 |
The equivalence of mass and energy |
111 |
6.4 |
Four-momentum identities |
114 |
6.5 |
Relativistic billiards |
115 |
6.6 |
The zero-momentum frame |
117 |
6.7 |
Threshold energies |
118 |
6.8 |
Light quanta and de Broglie waves |
119 |
6.9 |
The Compton effect |
121 |
6.10 |
Four-force and three-force |
123 |
|
Exercises 6 |
126 |
7 |
Four-tensors; Electromagnetism in vacuum |
130 |
7.1 |
Tensors: Preliminary ideas and notations |
130 |
7.2 |
Tensors: Definition and properties |
132 |
7.3 |
Maxwell's equations in tensor form |
139 |
7.4 |
The four-potential |
143 |
7.5 |
Transformation of e and b; The dual field |
146 |
7.6 |
The field of a uniformly moving point charge |
148 |
7.7 |
The field of an infinite straight current |
150 |
7.8 |
The energy tensor of the electromagnetic field |
151 |
7.9 |
From the mechanics of the field to the mechanics of material continua |
154 |
|
Exercises 7 |
157 |
II |
General Relativity |
163 |
8 |
Curved spaces and the basic ideas of general relativity |
165 |
8.1 |
Curved surfaces |
165 |
8.2 |
Curved spaces of higher dimensions |
169 |
8.3 |
Riemannian spaces |
172 |
8.4 |
A plan for general relativity |
177 |
|
Exercises 8 |
180 |
9 |
Static and stationary spacetimes |
183 |
9.1 |
The coordinate lattice |
183 |
9.2 |
Synchronization of clocks |
184 |
9.3 |
First standard form of the metric |
186 |
9.4 |
Newtonian support for the geodesic law of motion |
188 |
9.5 |
Symmetries and the geometric characterization of static and stationary spacetimes |
191 |
9.6 |
Canonical metric and relativistic potentials |
195 |
9.7 |
The uniformly rotating lattice in Minkowski space |
198 |
|
Exercises 9 |
200 |
10 |
Geodesics, curvature tensor and vacuum field equations |
203 |
10.1 |
Tensors for general relativity |
203 |
10.2 |
Geodesics |
204 |
10.3 |
Geodesic coordinates |
208 |
10.4 |
Covariant and absolute differentiation |
210 |
10.5 |
The Riemann curvature tensor |
217 |
10.6 |
Einstein's vacuum field equations |
221 |
|
Exercises 10 |
224 |
11 |
The Schwarzschild metric |
228 |
11.1 |
Derivation of the metric |
228 |
11.2 |
Properties of the metric |
230 |
11.3 |
The geometry of the Schwarzschild lattice |
231 |
11.4 |
Contributions of the spatial curvature to post-Newtonian effects |
233 |
11.5 |
Coordinates and measurements |
235 |
11.6 |
The gravitational frequency shift |
236 |
11.7 |
Isotropic metric and Shapiro time delay |
237 |
11.8 |
Particle orbits in Schwarzschild space |
238 |
11.9 |
The precession of Mercury's orbit |
241 |
11.10 |
Photon orbits |
245 |
11.11 |
Deflection of light by a spherical mass |
248 |
11.12 |
Gravitational lenses |
250 |
11.13 |
de Sitter precession via rotating coordinates |
252 |
|
Exercises 11 |
254 |
12 |
Black holes and Kruskal space |
258 |
12.1 |
Schwarzschild black holes |
258 |
12.2 |
Potential energy; A general-relativistic 'proof' of E = mc[superscript 2] |
263 |
12.3 |
The extendibility of Schwarzschild spacetime |
265 |
12.4 |
The uniformly accelerated lattice |
267 |
12.5 |
Kruskal space |
272 |
12.6 |
Black-hole thermodynamics and related topics |
279 |
|
Exercises 12 |
281 |
13 |
An exact plane gravitational wave |
284 |
13.1 |
Introduction |
284 |
13.2 |
The plane-wave metric |
284 |
13.3 |
When wave meets dust |
287 |
13.4 |
Inertial coordinates behind the wave |
288 |
13.5 |
When wave meets light |
290 |
13.6 |
The Penrose topology |
291 |
13.7 |
Solving the field equation |
293 |
|
Exercises 13 |
295 |
14 |
The full field equations; de Sitter space |
296 |
14.1 |
The laws of physics in curved spacetime |
296 |
14.2 |
At last, the full field equations |
299 |
14.3 |
The cosmological constant |
303 |
14.4 |
Modified Schwarzschild space |
304 |
14.5 |
de Sitter space |
306 |
14.6 |
Anti-de Sitter space |
312 |
|
Exercises 14 |
314 |
15 |
Linearized general relativity |
318 |
15.1 |
The basic equations |
318 |
15.2 |
Gravitational waves. The TT gauge |
323 |
15.3 |
Some physics of plane waves |
325 |
15.4 |
Generation and detection of gravitational waves |
330 |
15.5 |
The electromagnetic analogy in linearized GR |
335 |
|
Exercises 15 |
341 |
III |
Cosmology |
345 |
16 |
Cosmological spacetimes |
347 |
16.1 |
The basic facts |
347 |
16.2 |
Beginning to construct the model |
358 |
16.3 |
Milne's model |
360 |
16.4 |
The Friedman-Robertson-Walker metric |
363 |
16.5 |
Robertson and Walker's theorem |
368 |
|
Exercises 16 |
369 |
17 |
Light propagation in FRW universes |
373 |
17.1 |
Representation of FRW universes by subuniverses |
373 |
17.2 |
The cosmological frequency shift |
374 |
17.3 |
Cosmological horizons |
376 |
17.4 |
The apparent horizon |
382 |
17.5 |
Observables |
384 |
|
Exercises 17 |
388 |
18 |
Dynamics of FRW universes |
391 |
18.1 |
Applying the field equations |
391 |
18.2 |
What the field equations tell us |
393 |
18.3 |
The Friedman models |
396 |
18.4 |
Once again, comparison with observation |
405 |
18.5 |
Inflation |
409 |
18.6 |
The anthropic principle |
413 |
|
Exercises 18 |
415 |
Appendix |
Curvature tensor components for the diagonal metric |
417 |
|
Index |
421 |