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Lectures on Relativity

Relativity Mascot!



"You must unlearn what you have learned."
― Yoda speaking of Minkowskian space.


"Always in motion is the future."


"May the Metric be with you."


"Its energy surrounds us and binds us. You must feel the Metric around you."


"A Jedi's strength flows from the Metric."





week 1 First lecture:
Special Relativity: Introduction / Einstein’s Postulates / Time dilation and Length contraction / Time Triangle / Inertial reference frames / Einstein's synchronization.
Second lecture:
Minkowsky diagrams: Light cone / Causality / Simultaneity / Change of frame. Twin Experiment / Clock hypothesis / Equivalence principle
Exercise class: Time dilation and spacetime diagrams. worksheet.
week 2 Third lecture:
Vector Space: Contravariant & covariant components and basis / metric / tensors.
Fourth lecture:
Change of coordinates: General case / Lorentz transform / Measuring length in relativity / Composition of velocities / Doppler effect.
Exercise class: Vector Space, Change of coordinates and Composition of velocities. worksheet.
week 3 Fifth lecture:
Four-vectors: 4-velocity / 4-acceleration / Mass-energy equivalence / Energy and momentum / Inelastic collisions / Barycentric frame / Cosmic Rays.
Sixth lecture:
Relativistic Dynamics: Equations / Lorentz force / Relativistic motion in an electric and magnetic field / Particles trapped in a magnetosphere belt.
Exercise class: 4-vectors and energy-momentum conservation. worksheet.
Tensor
Training
Exercise class: Scalar and cross products, completely antisymmetric unit tensors, nabla operator, formulas, determinant, symmetric and antisymmetric tensors, electromagnetic tensor, electric and magnetic transform laws, 4-vector current, tensorial Maxwell equations, Lorentz invariants, covariant equation of motion, Lorentz covariant force. worksheet.
week 4 Lecture 7:
Metrics: Euclidean / Euclid's Postulates / Metric on the sphere / Riemann sphere stereographic projection / Mercator projection / Topology.
Lecture 8:
Lagrangian formalism: Geodesics / Demonstration of the equation of motion / Equations in general relativity / Examples / Toy models.
Exercise class: worksheet.
week 5 Lecture 9:
Non-inertial reference frames: Local basis and connections / Covariant derivative / Properties / Ricci Theorem.
Lecture 10:
Riemann curvature tensor: Parallel displacement / properties / inertial effects versus gravitation / Flat and curve spaces and spacetimes.
Exercise class: worksheet.
week 6 Lecture 11:
Accelerating frame: Proper and coordinate clocks / Wordlines / Metric / Event horizon.
Lecture 12:
Rotating Disk: Ehrenfest's Paradox / Synchronization of coordinate clocks / Metric / Change of coordinates / Space curvature / Sagnac effect.
Exercise class: worksheet.
Tensor
Training
Exercise class: Metric determinant / Surfaces and volumes / Non-synchronous reference system / Covariant Derivative Properties / Commutator of the covariant derivative / Riemann tensor symmetries and antisymmetries / Bianchi's Identity / Einstein's tensor / Ricci tensor and scalar / Calculations of Christoffel and Riemann components for different metrics. worksheet.
week 7 Lecture 13:
General Relativity: Equivalence Principle / Cartan's Theorem / Stress-energy tensor / Einstein's Equation.
Lecture 14:
Schwarzschild Metric: Spherical bodies and Black Holes / Demonstration of the metric.
Exercise class: worksheet.
week 8 Lecture 15:
Black Holes: Caracteristics / Event Horizon / Singularity / Worldlines.
Lecture 16:
Effective Potential: Deflection of light / Perihelion Precession / Inward spiraling of matter / Accretion Disk.
Exercise class: worksheet.
week 9 Lecture 17:
Gravitational Waves: Perturbation of the metric / Wave equation.
Lecture 18:
Emission of Gravitational Waves: Quadrupole Moment and radiation at large distance / Detection.
Exercise class: worksheet.
Examination