Re: Download a new book on quantum mechanics and relativity.

From: bernard.chaverondier (bernard.chaverondier_at_wanadoo.fr)
Date: 10/06/04 

Date: Wed, 6 Oct 2004 13:56:08 +0200

"Eugene Stefanovich" <eugenev@synopsys.com> a écrit dans le message de
news:4163B52B.2090403@synopsys.com...

chaverondier
> > You can easily convince yourself of that with an appropriate use
> > of an electric contact (causing an explosion for instance) open
> > or closed depending on length difference of two rods A and B
> > (of the same length when at rest) exhibiting different Lorentz
> > contraction K_A(1-v^2/c^2)^(1/2) and K_B(1-v^2/c^2)^(1/2)
> > with K_A slightly different from K_B both different from 1.
> > when set into motion at speed v.

Eugene Stefanovich
> We discussed the situation with two contracted rods at length in this
> thread. This was a series of posts by jem and myself. We concluded,
> that though this situation looks very unusual, the paradox has not
> been clearly demonstrated.

Chaverondier
I don't think it should be considered as a paradox. It's
a natural consequence of the violation of the Linear
Lorentz covariance assuming that the principle of
relativity works in 4D space-time instead of the
space of states.

Eugene Stefanovich
> I think that when you change to the moving frame of
> reference it is not correct to think that the only change
> you see is in the length of two rods. Many other things
> may change as well (according to my approach with
> dynamical boosts).

Chaverondier
Here is a manner to solve this problem

let us consider two rods A and B moving in space at the same
velocity and having the same lengths when observed by a
lazer device moving at the same speed than these two rods.
This device sends two light beams that touch the tips of the
rods A and B.

An observer at rest in frame R0 will receive these
two light beam separated by a distance which is
the unique Lorentz contracted length of these two
beams.

Hence, if rods A and B have same length in their
common inertial system of coordinate, they have
the same length in any inertial system of cordinate.
This conclusion doesn't depend on the principle
of relativity.

If your theory is correct, the two rods will not Lorentz
contract in the same manner when you change their
velocity but the _ratio_ between the two lengths will
be the same for any observer.

Your (rod A length)/(rod B length) ratio of Lorentz
contractions is a ratio up to measure the absolute
velocity of a moving frame because it doesn't
depend on the motion of the observer.

> I don't see any reason to abandon my approach
> basing on this unproven "controversy".

Neither do I. On the contrary, you should draw all the
conclusions. If your approach is correct, this proves
that the principle of relativity of motion assumed as
being universal in 4D space-time is an approximation
valid only for non interacting particles.

So, according to your theory; the detection of absolute
motion is very difficult (because causing extremely tiny
effects), but is possible from a principle point of view.

When interacting articles are concerned, then the
principle of relativity doesn't apply in our 4D space-time
but in the space of states of the system of interacting
particles.

Bernard Chaverondier
http://perso.wanadoo.fr/lebigbang/transformation.htm
Derivation of Lorentz transforms and "canonical" inertial
frames in the framework of Aristotle space-time.
http://perso.wanadoo.fr/lebigbang/epr.htm
Quantum determinism or Relativist locality ?

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