I think not only dark matter (in the form of mirror matter) but
negative gravitational charge matter is likely to exist. Not only
that, but black holes should be capable of producing matter with the
gravitational charge opposed to that of their own net gravitational
charge. The existence of such things can account for the anomalous
galactic rotations observed and for which the MOND equations produce
an alternative understanding.
I expect Hajdukovic hasn't carried his thought process to completion.
If gravitation is carried by quantum messenger particles (gravitons),
and is not the result of the bending of space, then it seems to me
self evident that the vacuum must be polarizable to account for the 1/
r^2 nature of gravity. This is because the effect of gravitation is
not instant. Gravity has a speed of propagation c_g. It is also clear
that the laws of gravitational physics form an isomorphism with the
laws of electromagnetic physics, and the values of vacuum
polarization are thus well described, and a complete isomorphism with
electromagnetism can be accomplished with slight modifications to
Jefimenko's GK theory.
If true, then this of course all has profound implications for
cosmology as well as practical implications.
For a quantitative justification of the above statements see:
http://www.mtaonline.net/~hheffner/CosmicSearch.pdf
http://www.mtaonline.net/~hheffner/GravityPairs.pdf
http://mtaonline.net/~hheffner/PioneerAnom.pdf
http://mtaonline.net/~hheffner/FullGravimag.pdf
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
On Aug 11, 2011, at 3:17 PM, Jouni Valkonen wrote:
Thanks for this post. I have bet 100 euros that there is no such thing
as dark matter, that has significant effect on rotation curves of
galaxies. Therefore it is specially good to hear such news!
–Jouni
2011/8/12 Mark Iverson <[email protected]>:
Just an FYI:
CERN physicist Dragan Slavkov Hajdukovic has proposed that the
illusion of
dark matter may be caused by the gravitational polarization of the
quantum
vacuum.
“We can consider our universe as a union of two mutually interacting
entities,” Hajdukovic said. “The first entity is our ‘normal’
matter (hence
we do not assume the existence of dark matter and dark energy),
immersed in
the second entity, the quantum vacuum, considered as a sea of
different
kinds of virtual dipoles, including gravitational dipoles.”
He goes on to explain that the virtual gravitational dipoles in
the quantum
vacuum can be gravitationally polarized by the baryonic matter in
nearby
massive stars and galaxies. When the virtual dipoles align, they
produce an
additional gravitational field that can combine with the
gravitational field
produced by stars and galaxies. As such, the gravitationally
polarized
quantum vacuum could produce the same “speeding up” effect on the
rotational
curves of galaxies as either hypothetical dark matter or a
modified law of
gravity.
Abstract
Assuming that a particle and its antiparticle have the
gravitational charge
of the opposite sign, the physical vacuum may be considered as a
fluid of
virtual gravitational dipoles. Following this hypothesis, we
present the
first indications that dark matter may not exist and that the
phenomena for
which it was invoked might be explained by the gravitational
polarization of
the quantum vacuum by the known baryonic matter.
-Mark
