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RELATIVITY Based on Physical Processes Budapest 2009 by Albrecht Giese Hamburg, Germany 1 The Physical Causes of Relativity

RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese Hamburg, Germany

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The Physical Causes of Relativity. 1. RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese Hamburg, Germany. The Physical Causes of Relativity. 2. Contents. “Space” and “Time”? Special Relativity Origin of Mass General Relativity. ‘. The Physical Causes of Relativity. - PowerPoint PPT Presentation

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Page 1: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

RELATIVITYBased on Physical Processes

Budapest 2009

byAlbrecht Giese

Hamburg, Germany

1

The Physical Causes of Relativity

Page 2: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

2

Contents

2

“Space” and “Time”?

Special Relativity

Origin of Mass

General Relativity

The Physical Causes of Relativity

Page 3: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

3

The Leading Question

3

Einstein’s Relativity is based

on assumptions about

“Space” and “Time”

The Physical Causes of Relativity

1. Is this the only possible way?

2. Is this a good way?

.

Page 4: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

4

Einstein’s Statement (Original Paper 1905)

4

The Physical Causes of Relativity

From the origin of a system k there shall a light beam be transmitted at the time 0 along the X-axis to x’ and from there at the time 1 reflected back to the origin, where it shall arrive at time 2; so, there must be

½(0+2) = 1

Page 5: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

5

d

v

5

The Physical Causes of Relativity

XO x‘

1

0 + 21 = 1/2(0+2)?

Note: The one-way speed of light cannot be measured independently

… shall a light beam be transmitted at the time 0 along the X-axis to x’ and from there at the time 1 reflected back to the origin, where it shall arrive at time 2;

Page 6: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

66

The Physical Causes of Relativity

“ … This definition is essential for the special theory of relativity, but it is not epistemologically necessary. Einstein’s definition, too, is only one possible definition. …”

The special theory prefers ½ ... ,” it does so on the ground that this definition leads to simpler relations”. …

The intention of this talk is to show: Relativity of Einstein based on space-time is not the good solution Relativity can be based on physical processes rather principles This is . Much-much easier . Gives information about other areas, e.g. particle physics

X X

Philosopher Hans Reichenbach in “The Philosophy of Space and Time”:

Page 7: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

7

Contents

7

“Space” and “Time”?

Special Relativity

Origin of Mass

General Relativity

The Physical Causes of Relativity

Page 8: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

8

• Contraction

• Dilation

2cmE

8

• Increase of Mass

• Energy-Mass Relation

• Constancy of c

Special Relativity:Its Elements

The Physical Causes of Relativity

Page 9: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

9

Special Relativity:History of the contraction

1888: O. Heaviside Electric fields contract at motion

Objects contract at motion 1889 G.F. FitzGerald

1892: H.A. Lorentz Michelson-Morley apparatus contracts at motionwhich explains the null-result of the experiment:

9

2

2

1/1cvddd *1'

The Physical Causes of Relativity

1932: R.J. Kennedy E.M.Thorndike

The experiment cannot be explained by pure contractionNeeds dilation also

Sufficient to understand relativity?

Page 10: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

10

h/E

Special Relativity:Dilation is the consequence of internal motion

History of the internal motion

1908: J. Ziegler Motion at c of the ‘smallest objects’

Internal oscillation causes ‘matter waves’frequency:

1924: L. de Broglie

1928: P. Dirac Relativistic QM-function of the electron:

1930: E. Schrödinger Evaluation of the Dirac Function: t

txitxH

),(),(

10

tHpcxtx kkk12)0()(

)1)()0((21 211 iHt

kk eHcpcHi c

Zitterbewegung

The Physical Causes of Relativity

Page 11: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

11

“Zitterbewegung” (Schrödinger) Completed Structure of an Elementary Particle:

No conflict with the electron experiments

orbit (Spin, mag. moment)

11

The Physical Causes of Relativity

(de Broglie 1924) = E / h(Dirac / Schrödinger 1928/30)v = c

(Relativity)m = 0

(Momentum law)N = 2

Page 12: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

1212

Special Relativity:Dilation

222 vcq Pythagoras

cRT 2

qRT 2'

2

2

1/1'cv

qc

TT i.e. the Lorentz-Factor

222

2 cvdtdc

2

2

11cv

dtd

222

2 vcdtdc

v

dtdc

„Speed of proper time“

The Physical Causes of Relativity

For the helical motion:

Page 13: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

13

Contents

13

“Space” and “Time”?

Special Relativity

Origin of Mass

General Relativity

The Physical Causes of Relativity

Page 14: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /rmass 14

Static field of a point charge

14

rU 1

U

The Physical Causes of Relativity

Page 15: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /rmass 15

Field of a moving charge

rU 1

rU 1

15

rU 1

U

The Physical Causes of Relativity

Page 16: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/rmass 16

The Origin of Mass: Bind of the Basic Particles

302

rrrqKF

16

The Physical Causes of Relativity

Page 17: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/rmass 17

Bind of the Basic Particles at motion

32

rrqKF

Fr

rF

17

The Physical Causes of Relativity

Page 18: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/rmass 18

cRm

The Mass Equation

2cmE RcRchhE 2

The classical magnetic moment:

302

rrrqKF

2

1cr

CaF

2cr

1CaFm

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!

18

The Physical Causes of Relativity

Rec 021

me

21 0

Page 19: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/rmass 19

Mass and Increase of Mass

Relativistic increase of mass: From

2cmE RcRchhE 2

Spin:cR

m

cRm

Classical angular momentum

-------------------------------------------------------------------------------------------------------------------------

Putting the object to motion:

302

rrrqKF

2

1cr

CaF

2cr

1CaFm

19

2/rR

The Physical Causes of Relativity

cRm

R'RR mmm '

2cdmdE 2cmE

Page 20: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

20

Contents

20

“Space” and “Time”?

Special Relativity

Origin of Mass

General Relativity

The Physical Causes of Relativity

Page 21: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 21

The Shapiro-Experiment:

c

c

P

crMGcrc

20

0 21)( P=1/2 or 1 depending on direction

21

Einstein‘s view: this is a seeming reduction of c

The Physical Causes of Relativity

Page 22: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 22

The gravitational field of the sun:

The application of classical refraction yields for the vertex: 2rMGa

Now: Acceleration at rest!!

P

crMGcrc

20

0 21)(

P=1/2 or 1 depending on direction

Integrating deflection from – to + yields: 1.75 arcsec …. with Newton: 0.88 arcsec

22

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

Page 23: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 23

Elementary Particle in a Gravitational Field (with Vertical Axis):

‘ Gravit.Source

c

c

No dependency of the mass!

23

2rMGa

The Physical Causes of Relativity

Page 24: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 24

Formal Treatment of General Relativity (Gravity)

24

Schwarzschild Solution:

is the basis for the proofs of General Relativity:

- Perihelion Advance- Gravitational Lensing - …

2222120 )1()1( crr

rrx

rr ss

The Physical Causes of Relativity

Page 25: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 25

Formal Result of General Relativity (Gravity)

25

1

1

rrcc s for radial motionReduced speed of light c

Reduced field distance

22cr

GMrs

drrd s 2

1

)1('

Schwarzschild Solution

2

*

2crNGrs

222

2 vcdtdc

2/1

1

rrcc s for tangential motion

in radial direction

Lorentz Transformation(time-related)

Speed split into radial/tangential portion

22222

2

rrc

dtdc

Now Gravity:2

212

22

2 11

dtdr

rr

dtdr

rrc

dtdc ss

2

ddt 22

12222 11 r

rrr

rrtcc ss

The Physical Causes of Relativity

Page 26: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

26

The Physical Causes of Relativity

26

Field EquationsRiemann Geometry

Derivation of the Schwarzschild Solution (via Einstein)

Page 27: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 27

27

1

1

rrcc s for radial motionReduced speed of light c

Reduced field distance

22cr

GMrs

drrd s 2

1

)1('

Schwarzschild Solution

2

*

2crNGrs

222

2 vcdtdc

2/1

1

rrcc s for tangential motion

in radial direction

Lorentz Transformation(time-related)

Speed split into radial/tangential portion

22222

2

rrc

dtdc

Now Gravity:2

212

22

2 11

dtdr

rr

dtdr

rrc

dtdc ss

2

ddt 22

12222 11 r

rrr

rrtcc ss

The Physical Causes of Relativity

Derivation of the Schwarzschild Solution (via the Basic Particle Model)

Page 28: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org 2828

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

Page 29: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 29

Why is ‘c’ reduced?

Averagespeed

< c

‘Reduction of c independent of Radius independent of mass

--> by the perturbed path of a light-like particle

29

Force is the Strong Force

This solves Quantum Gravity!

c

The Physical Causes of Relativity

Page 30: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

/gravity 30

Dark MatterAcceleration (Dark Energy / Cosmological Constant)Quantum Gravity

30

Open problems in Gravity / Cosmology

The Physical Causes of Relativity

Page 31: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /gravity 31

The Dark Matter Problem:

Missing Matter in a rotating Galaxy

Relativity / Gravity

The Physical Causes of Relativity

31

Page 32: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /gravity 32

Rotation of the Galaxy NGC 3198

halo(of dark matter)

photons

32

Axions, neutralinos etc

The Physical Causes of Relativity

Page 33: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /gravity 33

Inflation

•The need for inflation: At early times there was a causal connection between regions which move off each other at extreme speed requirement for contracted space

The Origin of Gravity

33

c/c0

1

1025

1050

Development of ‘c’

Big Bang nowtime

•The need for causal connection: Is also fulfilled with a high value of ‚c‘ in an unaltered space

Alternativ:

Page 34: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /gravity 34

Need for Dark Energy?

Development of the Universe:

cv

c/c0

1

1025

1050

Development of ‘c’

Big Bang nowtime

The Origin of Gravity

34

•Doppler-Effect: If ‚c‘ was higher at early times then we get – from the

formula – a higher speed for the early supernovae.

•The acceleration at later times disappear.

Doppler-Effekt:

Page 35: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /gravity 35

What is about space-time?

The “Dark Matter” phenomenon

Summary

The necessity of the Equivalence Principle (which is an fact derived here)

The “only attracting” effectThis approach explains:

The force #4 assigned to gravity (non-existent; step towards a unified theory)

Conflicts between gravity and quantum theory QUANTUM GRAVITY becomes obsolete

This approach avoids:

This approach maintains: The classical (and naïve) understanding of space and time

35

The Physical Causes of Relativity

Relativity (gravity!) can easily be understood

‘‘

The “Dark Energy” phenomenon

What are the benefits of our approach?

Space-time is not necessary, not helpful, makes relativity complicated

Page 36: RELATIVITY Based on Physical Processes B udapest 2009 by Albrecht Giese  Hamburg, Germany

www.ag-physics.org /gravity 36

The End

36

Basing Relativity on Physical Processes