A Physics forum. Physics Banter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » Physics Banter forum » Physics Newsgroups » The Theory of Relativity
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Tags: , , , ,

Nonlocal gravity energy in Einstein's 1916 GR



 
 
Thread Tools Display Modes
  #1  
Old September 1st 06 posted to sci.physics,sci.physics.relativity,sci.physics.particle,sci.math,sci.philosophy.tech
Jack Sarfatti
external usenet poster
 
Posts: 2,218
Default Nonlocal gravity energy in Einstein's 1916 GR

There has been a lot of nonsense about

1. finding a local classical gravity stress-energy density tensor
Pauli's 1921 classic article solves that problem adequately.

2. Newtonian interpretation of Einstein's connection field as

Einstein Connection = Non-inertial Frame Connection Non-Tensor -
Intrinsic Curvature Connection

where

Intrinsic Curvature Connection Tensor =/= 0

In fact

Intrinsic Curvature Connection = 0

and that is one aspect of the equivalence principle i.e.

The local gravity force per unit mass or "g's" felt by a non-geodesic
observer is

g^i = c^2{Einstein Connection}^i00(dx^0/ds)(dx^0/ds)

For example outside a SSS source, i = 1 is the radial direction

g^1 = GM/r^2

g^2 = g^3 = 0

for static hovering shell non-geodesic LNIF observers at fixed r

Note that g^1 is also the local frame invariant proper acceleration
because {Einstein Connection}^000 = 0.

3. Confusions about potential in GR.

If you look at the SSS metrics

g00 ~ 1 + V(Newton)/c^2

V(Newton) is the classical gravity potential energy per unit test mass.

On the other hand from the local gauge field theory fiber bundle POV

Principle bundle gives the local gauge force field.

Associated bundle gives the source field.

In the standard model, the dynamical symmetry group G is an internal
group like 1-parameter U(1), 3-parameter SU(2) & 8-parameter SU(3) so
that the fiber is an internal space, or possibly extra space dimensions
if you use string theory. The source fields are spinor lepton-quarks.
The spacetime symmetry group S is a non-dynamical background.
S =/= G.

On the other hand, in 1916 GR the symmetry group G is the 10-parameter
Poincare space-time group, or possibly the 16-parameter GL(4,R) group
that includes the 15-parameter conformal group of Penrose massless
twistors as a sub-group.

However, in 1916 GR the torsion is zero, this means only the 4-parameter
T4 subgroup of the Poincare group gives dynamically independent degrees
of freedom of the geometrodynamic field that is the fabric of 4D
space-time. The Lorentz group O(1,3) generators are redundant in that limit.

The Diff(4) GCT group is the locally-gauged T4 translation group
generated by total 4-momentum. Since total energy is only conserved if
there is time-translation invariance (Noether's theorem) and since our
accelerating expanding pocket universe in the megaverse of many worlds
is manifestly not time translation invariant in any sense, it is obvious
that the total energy of the universe is not conserved. Our universe is
not a closed system in the classical sense. Indeed, the micro-quantum
zero point vacuum dark energy density at large scale has w = -1
therefore its energy density is constant, therefore the total dark
energy is not conserved.

Now in 1916 GR the geometrodynamic source field is the Cartan mobile
tetrad frame

e^a, a = 0,1,2,3 in local Minkowski tangent space.

The "potential" is the Einstein connection field that is made from
gradients of Newton's potential V(Newton). That is V(Newton) is the
meta-potential of the Einstein Connection potential. This is a unique
feature of the equivalence principle not found in the internal gauge
theories where there is a qualitative separation between the dynamical
group and the space-time group, i.e. S = G is another way to look at the
equivalence principle.








Ads
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nonlocal gravity energy in Einstein's 1916 GR Jack Sarfatti Physics - General Discussion 0 September 1st 06 08:38 PM
Must the energy of gravity be nonlocal? Jack Sarfatti Physics - General Discussion 4 August 28th 05 11:57 PM
Gravity energy really is nonlocal Jack Sarfatti The Theory of Relativity 0 May 7th 05 07:53 PM
Roger Penrose on Nonlocal Gravity Energy in Einstein's General Relativity Jack Sarfatti The Theory of Relativity 0 March 26th 05 01:21 AM
Energy of Gravity is Nonlocal Jack Sarfatti The Theory of Relativity 6 October 31st 04 11:46 PM


All times are GMT +1. The time now is 10:57 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.Search Engine Friendly URLs by vBSEO 2.4.0
Copyright ©2004-2008 Physics Banter, part of the NewsgroupBanter project.
The comments are property of their posters.
Free Advertising - Web Advertising - Cingular Ringtones - Per Insurance - Anniversary Gifts