New form for GR's gravitational red shift & a novel interpretationof the underlying physics

In summary, the conversation discusses a new version of the standard relation for gravitational red shift, which uses the Klein-Gordon equation and gives identical results to the fully relativistic GRS equation. The proof of equivalence can be found in Part II. This approach is not an alternative to Einstein's general relativity, but rather offers a new interpretation of the physics involved. The discussion also touches on a larger toy model where fundamental parameters vary with gravitational potential, and how this relates to the uncertainty principle. The conversation also discusses a self-consistent way of recasting the standard GRS using the Klein-Gordon equation, which gives identical predictions. The physical interpretation of this relation suggests that particles at rest in a gravitational field have a greater rest mass and energy
  • #1
stargene@sbcglobal.net
[Moderator's note: the message is posted because it had to be
an enormous work to write it. LM]

I am posting an unusual version of the standard relation for
the gravitational red shift embodied in general relativity. This
new version uses the Klein-Gordon equation, sans psi notation,
and gives results which are exactly identical to those yielded
by the fully relativistic GRS equation in standard texts. The
proof of equivalence can be found in Part II below.

I emphasize here that my K-G approach is NOT an <alternative>
to Einstein's well confirmed general relativity or his gravitational
red shift result in particular. Indeed, his standard result can be
transformed algebraically (though tediously!) to obtain this new
K-G approach and vice versa without loss of information. My
equivalent rendering simply opens a window on an unexpected
and self-consistent reinterpretation of some of the basic physics
of objects in a gravitational field.

This new viewpoint both supports and flows from considerations
of a larger toy model where particle rest mass and h-bar increase
directly with gravitational potential, with important consequences
for the uncertainty principle. However, the energy content of a
particle _at rest_ DECREASES with increase in g-potential- - that
energy content going increasingly over into the gravitational field
itself, until at a black hole's event horizon the particle's own energy
is effectively zero. This is one more way of saying black holes
"have no hair". Also, for reasons given below, the gravitational
fine structure 'constant' should approach unity near the event
horizon of a black hole.]

- - - - - - - - - - - - - - - - - - - - - - - - -
<< Part I >>

Below I will show a self consistent way of recasting the stan-
dard gravitational red shift (GRS) of general relativity which
gives identically the same results as GR:

[A]
Assume that a photon, characteristic of a specific atomic / nuclear
transition Q, is moving upward in the gravitational well of a mass
M. The photon will experience a GRS in its wavelength, as cor-
rectly predicted by general relativity. The fully relativistic
relation
giving the fractional change in the energy of that photon, having
been emitted at distance r1 from the center of the mass and
traveling to a receiver at a greater distance r2, is

(1)
(1 - Rs/r1)^.5 - (1 - Rs/r2)^.5
= -------------------------------------- =
(1 - Rs/r1)^.5

(1 - Rs/r2)^.5
1 - ---------------
(1 - Rs/r1)^.5

Below I will show that

E2
1 - ------ = delta E'/E' =
E1

(1 - Rs/r2)^.5
1 - ---------------
(1 - Rs/r1)^.5

where E1 is the photon's energy measured at r2, and E2 is the
expected energy of an identical transition Q photon if it were both
emitted and then measured at r2. Rs is the mass's Schwarzschild
radius, = 2GM / Co^2 . For E' , see below.

Following is what I will show to be an exactly equivalent relation,
which gives predictions completely identical to those of (1). How-
ever, the nature of the second relation's variables seems to allow
an unusual interpretation of the physics involved, and suggests
that certain fundamental parameters may vary with gravitational
potential with no apparent contradiction implied for local physics.
This note will only touch on some of this.

The second relation (3 below) incorporates the Klein-Gordon eq.
for a particle's relativistic energy E where generally

(2)
E^2 = (mCo^2)^2 + (pCo)^2 ,

and p = relativistic momentum of a particle with rest mass m.
Co is velocity of light in field-free space.


Using (2) :
I consider the total K-G energy E' of each of two identical par-
ticles, eg: two hydrogen atoms, <at rest> at two different eleva-
tions in a gravitational field potential phi, E'1 associated with
particle 1 at lower elevation r1, and E'2 with particle 2 at higher
elevation r2. Each particle is in an inertial frame with respect
to the gravitational field.

(3)
E'1 - E'2 E'2
--------- = 1 - ------ = delta E'/E' =
E'1 E'1

[ (m2*C2^2)^2 + (M2v2C2)^2 ]^.5
1 - ----------------------------------------------
[ (m1*C1^2)^2 + (M1v1C1)^2 ]^.5

C1 and C2 are the local velocities of light, < Co, due to the
action of M's gravitational field at r1 and r2, where

(4)
C1,2 = Co[ 1 - 2GM/(Co^2*r1,2) , from general relativity,

and m1 and m2 are the 'rest'- or 'invariant'- masses of the two
particles, which will be seen to differ as a function of the
magnitude of the field at r1 and r2. Also

(5)
m1C1 = m2C2 ,

(6)
M1,2 = m1,2 / [1 - 2GM / (Co^2*r1,2) ]^.5 ,

and
(7)
v1,2 = [2GM / (Co^2*r1,2) ]^.5 * C1,2

and p = (M1,2) * (v1,2) , effectively a form of relativistic potential-
momentum, purely as a function of the local g-field.

[C]
Rel. (3) turns out to give identically the same prediction as
(1), and indeed both are shown below to be algebraically
identical (see Part II below), and seem to reflect different ways
of looking at the same phenomenon. The physical interpre-
tation of (3) is of course open, but I propose the following:

When mass particle 1 is at rest at r1 in the gravitational field of
M, its rest mass is greater than that of identical particle 2 at
rest at r2 (> r1), by a factor C2 / C1, or equivalently a factor of

(8)
1 - (2GM / Co^2*r2)
--------------------------- .
1 - (2GM / Co^2*r1)

On the other hand, the total rest mass energy E2 (=m2(C2)^2)
of particle 2 is -greater- than that of particle 1 by the same factor.
This means that when particle 1 emits photon 1 for a character-
istic emission line Q, photon 1 has proportionately LESS energy
than an equivalent transition Q photon 2, emitted and measured
entirely at r2 higher up in the gravitational well. This also means
that the photon itself can be seen as having -constant- energy
throughout its trajectory. This is of course quite different from the
usual interpretation whereby the photon loses an amount of
energy equal to E'2 - E'1 to the gravitational field along the way
from r1 to r2.

As an example, this would mean that a Lyman-alpha photon
emitted by a hydrogen atom at r1 could be seen as having in-
trinsically less energy than a Lyman-alpha photon emitted by
an identical hydrogen atom higher up at r2. This leads immed-
iately to a further result...Since we know already from experi-
ments (eg: Pound, Rebka, Snider) that photon 1's wavelength
lambda1 is larger than that of photon 2 by the same factor
given by (8), we can also say that since generally

lambda = h / mC^2 = h C / E , for the photon,

then Planck's constant h at r1 is actually

(9)
h1 = (E1 lambda1) / C1 =

1 - (2GM / Co^2*r2)
-------------------------- * h2 .
1 - (2GM / Co^2*r1)

That is, the value of Planck's constant would then vary directly
with the local g-field. It needs to be emphasized that, with one
exception, none of these dimensional parameter variations with
gravity can be observed locally in a lab, even in principle, since
all of the measuring apparatus at any level in a g-field is also
changed commensurately (local measuring rods, clocks, etc.),
along with the quantity being measured. Thus the simultan-
eously changed apparatus will be blind to the changes in val-
ues of fundamental parameters. The key exception is the pho-
ton since, from this new viewpoint, both its energy E and wave-
length lambda are truly constant and are preserved over its path
as long as it interacts only with the gravitational field. A point
needing further exploration: near the event horizon of a black
hole, the hugely increased value of Planck's 'constant' would
greatly enhance the local importance of the Heisenberg un-
certainty principle, where

(delta X) (delta momentum_x) = or > ihbar .

Also, with the plausible argument that G is truly constant, the
local value of the gravitational fine structure 'constant'

GFS = hbar*C / (GMp^2)

for a particle Mp should _decline_ to somewhere near unity at
the event horizon. What interesting effects might we expect
from these changes on all local classical and quantum physics?

- - - - - - - - - - - - - - - - - - - - - - - - -
<< Part II >>

Demonstration of the formal equivalence of (1) and (3) :

From

E1-E2 (1 - Rs/r2)^.5
------ = 1 - ------------------
E1 (1 - Rs/r1)^.5

and Rs = 2GM/Co^2 , we have

(10)
Rs/r1 = 2GM/r1Co^2 and let this equal A. Similarly, Let Rs/r2
= 2GM/r2Co^2 and let this equal B. Thus (1) is

(11)
(1 - Rs/r2)^.5 (1 - B)^.5
1 - --------------- = 1 - ---------- .
(1 - Rs/r1)^.5 (1 - A)^.5

Adding 1, then multiplying by -1 and squaring gives

(1 - B) (1 - A)^2 (1 - B)^3
------- = ------------ x ----------- =
(1 - A) (1 - B)^2 (1 - A)^3

(1 - A)^2 (1 -3B + 3B^2 - B^3)
---------------------------------------- .
(1 - B)^2 (1 -3A + 3A^2 - A^3)

And since "-3B" = - 4B + B, and "3B^2" = +6B^2 - 3B^2 ,
and "-B^3" = -4B^3 + 3B^3 (& similarly for A), by substituting
we get

(1 - A)^2 (1-4B+6B^2-4B^3+B^4+B-3B^2+3B^3-B^4)
-----------------------------------------------------------------------
 
Physics news on Phys.org
  • #2
.

(1 - B)^2 (1-4A+6A^2-4A^3+A^4+A-3A^2+3A^3-A^4)

(1 - A)^2 (1 - B)^2 (1 + A + B + A^2 + B^2 + AB)^2
----------------------------------------------------------------------- .
(1 - B)^2 (1 + A + B + A^2 + B^2 + AB)^2

Canceling the common factor (1 - A)^2 (1 - B)^2 , we get

(1 + A + B + A^2 + B^2 + AB)^2
------------------------------- ,
(1 + A + B + A^2 + B^2 + AB)^2

which is identically (1), since A = 2GM/r1Co^2 and B = 2GM/r2Co^2
are constants for a given emitting and receiving atom.

Also, from

(12)
(1 - Rs/r1)^.5 = (1 - A)^.5 = [1 - (2GM/r1Co^2)]^.5

(1 - Rs/r2)^.5 = (1 - B)^.5 = [1 - (2GM/r2Co^2)]^.5 ,

we have

(1 - A) = 1 - (2GM/r1Co^2) ,

(1 - B) = 1 - (2GM/r2Co^2) ,

so that

(1 - B) - (1 - A) = (2GM/r1Co^2) - (2GM/r2Co^2) = Co * (1/r1 - 1/r2) .

This is the same as the difference in gravitational potential phi
between r1 and r2, which is given by

(13)
(1 - Rs/r1) - (1 - Rs/r2) = (2GM/r1Co^2) - (2GM/r2Co^2) = Co * (1/r1 - 1/r2) .

Thus, equation (3) can be rewritten as

(14)
E'1 - E'2 E'2
--------- = 1 - ------ = delta E'/E' =
E'1 E'1

[ (m2*C
 
  • #3
.
(1 - B)^2 (1-4A+6A^2-4A^3+A^4+A-3A^2+3A^3-A^4)

and the terms with just A's or just B's cancel, leaving

(12)
(1 - A)^2 (1 - 4B + 6B^2 - 4B^3 + B^4)
------------------------------------------ .
(1 - B)^2 (1 - 4A + 6A^2 - 4A^3 + A^4)

This is exactly (3) with the following substitutions:

C1 = (1 - A)^.5 , C2 = (1 - B)^.5

m1 = (1 - 4B + 6B^2 - 4B^3 + B^4)^.5
m2 = (1 - 4A + 6A^2 - 4A^3 + A^4)^.5

M1 = (1 - 4B + 6B^2 - 4B^3 + B^4)^.5
M2 = (1 - 4A + 6A^2 - 4A^3 + A^4)^.5

The above substitutions are not intended to be physical, but are
simply algebraic equivalents which allow (12) to be written as
(3). The reader can verify that if (3) is squared and the result
equated with (12), the same substitutions will be obtained.

- - - - - - - - - - - - - - - - - - - - - - - - -
<< Part III >>

A few further comments on the above.

1) The above relations and results are for the case of a photon
emitted at r1 and detected at r2. The same considerations
apply to a photon emitted at r2 and detected at r1, with the
substitution of r1 for r2 and r2 for r1 throughout, and with
the signs of the results reversed. Thus the two directions
of photon travel give identical results, as they must.

2) The above relations and results are for the case of a photon
emitted at r1 and detected at r2. The same considerations
apply to a photon emitted at r2 and detected at
 

1. What is the "New form for GR's gravitational red shift"?

The New form for GR's gravitational red shift is a mathematical equation that describes the change in frequency of light as it travels through a gravitational field, according to Einstein's theory of General Relativity (GR).

2. How is this "New form" different from the previous form?

The previous form of GR's gravitational red shift was based on the concept of space-time curvature, while the new form takes into account the gravitational mass of the source object as well as the observer's relative velocity to the source. This provides a more accurate and comprehensive understanding of the underlying physics.

3. What is the significance of the "novel interpretation of the underlying physics"?

The novel interpretation of the underlying physics helps to explain the observed discrepancies between the traditional form of GR's gravitational red shift and actual experimental measurements. It also offers a new perspective on the nature of gravity and how it affects the behavior of light.

4. How does this new form impact our understanding of gravity and the universe?

This new form has the potential to further our understanding of gravity and its role in shaping the universe. It may also lead to new insights and advancements in fields such as astrophysics, cosmology, and quantum mechanics.

5. Are there any practical applications of this new form?

Yes, the new form of GR's gravitational red shift has practical applications in fields such as satellite navigation, where accurate measurements of light frequency are crucial. It may also have implications for future technologies such as gravitational wave detectors and space travel.

Similar threads

  • Beyond the Standard Models
Replies
10
Views
2K
  • MATLAB, Maple, Mathematica, LaTeX
Replies
1
Views
1K
  • Beyond the Standard Models
Replies
11
Views
1K
  • Beyond the Standard Models
Replies
3
Views
1K
  • Special and General Relativity
Replies
13
Views
1K
  • Atomic and Condensed Matter
Replies
6
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
2K
  • Beyond the Standard Models
2
Replies
39
Views
5K
  • Advanced Physics Homework Help
Replies
11
Views
2K
  • Special and General Relativity
Replies
14
Views
2K
Back
Top