Taking RELATIVITY back from Principles to Physical Processes by Albrecht Giese Hamburg, Germany London The Physical Causes of Relativity
2 Contents 2 ‘ Introduction: “Space” and “Time”? Special Relativity Origin of Mass General Relativity The Physical Causes of Relativity
3 Question: How is “space” measured? 3 ‘ Examples from geodesy: The Physical Causes of Relativity
4 ‘
5
6 ‘
7 7
8 8 ? ? ?? ? ? ‘
9 Space & Time 9 ‘ Space is not a physical object Space is a concept of the human mind Consequence: replace Space Objects Fields X The Physical Causes of Relativity
10 Space & Time 10 ‘ Time is not a physical object Time is a concept of the human mind Consequence: replace Time Elementary oscillations X The Physical Causes of Relativity
11 Contents 11 ‘ Introduction: “Space” and “Time”? Special Relativity Origin of Mass General Relativity The Physical Causes of Relativity
12 Contraction Dilation ‘ 12 Increase of Mass Energy-Mass Relation Constancy of c The Elements of Special Relativity The Physical Causes of Relativity
13 Objects contract at motion Special Relativity: History of the contraction ‘ 1888: O. Heaviside Electric fields contract at motion 1889 G.F. FitzGerald 1892: H.A. Lorentz Michelson-Morley apparatus contracts at motion which explains the null-result of the experiment: ‘ : R.J. Kennedy E.M.Thorndike The experiment cannot be explained by pure contraction Needs dilation also The Physical Causes of Relativity Sufficient to understand relativity?
14 Internal oscillation causes ‘matter waves’ frequency: Special Relativity: History of the internal motion ‘ 1908: J. Ziegler Motion at c of the ‘smallest objects’ 1924: L. de Broglie 1928: P. Dirac Relativistic QM-function of the electron: 1930: E. Schrödinger Evaluation of the Dirac Function: c Zitterbewegung ‘ 14 The Physical Causes of Relativity
15 “Zitterbewegung” (Schrödinger) Completed Structure of an Elementary Particle: ‘ No conflict with the electron experiments (de Broglie 1924) (Dirac / Schrödinger 1928/30) (Relativity) (Momentum law) orbit (Spin, mag. moment) 15 The Physical Causes of Relativity
16 Special Relativity: Dilation ‘ 222 vcq Pythagoras cRT 2 qRT 2' 2 2 1/1 ' c v q c T T i.e. the Lorentz-Factor v „Speed of proper time“ The Physical Causes of Relativity
/1 ' c v q c T T i.e. the Lorentz-Factor ‘ d At rest:Measurement of d and T: measured c m = 2d/T = c d = fixed ; T = 2d/c Lab in motion with v: Measurement of d and T: d = fixed v T = d/(c-v) + d/(c+v) = 2cd/(c 2 - v 2 ) = 2d/c * 2 measured c m = 2d’/T’ with d’ = d/ T’ = T* measured c m = 2d’/T’ = 2d/T/ 2 = c* 2 / 2 = c 17 Special Relativity: Measuring ‘c’ The Physical Causes of Relativity
18 Contents 18 ‘ Introduction: “Space” and “Time”? Special Relativity Origin of Mass General Relativity The Physical Causes of Relativity
/rmass19 The Origin of Mass: Bind of the Basic Particles ‘ 19 The Physical Causes of Relativity
/rmass20 Bind of the Basic Particles ‘ F rr rr F 20 The Physical Causes of Relativity
/rmass21 The Mass Equation ‘ The classical magnetic moment: Or both equations combined: = Bohr magneton in case of the electron universally valid for all elem. particles Radius R computed from the magnetic moment and then inserted above the correct mass m universal for all elem. particles! 21 ‘ The Physical Causes of Relativity
/rmass22 Mass and Increase of Mass ‘ Relativistic increase of mass: From Spin: Classical angular momentum Putting the object to motion: 22 The Physical Causes of Relativity
23 The Origin of Mass Existing Models ‘ 23 Higgs Boson Higgs Model Basic Particle Model Vacuum fluctuations Higgs Boson The Physical Causes of Relativity
24 Contents 24 ‘ Introduction: “Space” and “Time”? Special Relativity Origin of Mass General Relativity The Physical Causes of Relativity
/gravity25 The Shapiro-Experiment: ‘ c c P=1/2 or 1 depending on direction 25 Einstein‘s view: this is a seeming reduction of c The Physical Causes of Relativity
/gravity26 The gravitational field of the sun: The application of classical refraction yields for the vertex: ‘ Now: Acceleration at rest!! P=1/2 or 1 depending on direction Integrating deflection from – to + yields: 1.75 arcsec …. with Newton: 0.88 arcsec 26 This was the great breakthrough for Einstein in 1919 (Solar eclipse)!! Einstein‘s view: the path ís straight but the space is curved The Physical Causes of Relativity
/gravity27 Elementary Particle in a Gravitational Field (with Vertical Axis): ‘ Gravit. Source c c No dependency of the mass! 27 The Physical Causes of Relativity
/gravity28 Formal Result of General Relativity (Gravity) ‘ 28 for radial motion Reduced speed of light c Reduced field distance Schwarzschild Solution for tangential motion in radial direction Lorentz Transformation (time-related) Speed split into radial/tangential portion Now Gravity: The Physical Causes of Relativity
/gravity29 Results of General Relativity (Gravity) ‘ 29 Schwarzschild Solution: is the basis for the proofs of General Relativity: - Perihelion Advance - Gravitational Lensing - … The Physical Causes of Relativity
30 The Physical Causes of Relativity 30 ‘ Field Equations Riemann Geometry As a comparison: The Schwarzschild Solution derived with Einstein
/gravity31 The Schwarzschild Solution derived without Einstein ‘ 31 for radial motion Reduced speed of light c Reduced field distance Schwarzschild Solution for tangential motion in radial direction Lorentz Transformation (time-related) Speed split into radial/tangential portion Now Gravity: The Physical Causes of Relativity
32 Gravity is the change of the speed of light ‘c’ in the vicinity of an object What is Gravity? ‘ But: What is the physical reason for the change of the speed of light ‘c’ in the vicinity of an object? The Physical Causes of Relativity
/gravity33 Why is ‘c’ reduced? Average speed < c ‘ Reduction of c independent of Radius independent of mass --> by the perturbed path of a light-like particle 33 Force is the Strong Force This solves Quantum Gravity! c The Physical Causes of Relativity
/gravity 34 Gravitational Field of Light Particles at the Sun ‘ r The density of the light particles: Gravitational field of photons at r: c Gravitational field of the ‘Core’ Core The number of light particles up to r: Light Particles (Photons) Observer The Physical Causes of Relativity 34
/gravity 35 Gravitational Field of Light Particles at the Sun per Distance ‘ Sun surface 3 kpc Core dominates Photons (“dark matter”) dominate 35 The Physical Causes of Relativity
36 ‘ Rotation of the Galaxy NGC 3198 halo (of dark matter) photons The Physical Causes of Relativity
/gravity 37 What are the benefits of this model of gravity? The “Dark Matter” phenomenon Summary The necessity of the Equivalence Principle (which is an fact derived here) The “only attracting” effect The model explains: The force #4 assigned to gravity (non-existent; step towards a unified theory) Conflicts between gravity and quantum theory QUANTUM GRAVITY BECOMES OBSOLETE The model avoids: The model maintains: The classical (and naïve) understanding of space and time 37 The Physical Causes of Relativity The model can easily be understood ‘ ‘
/gravity 38 The End ‘ 38 Basing Relativity on Physical Processes