From the same "place" that nonzero spin "comes from": the use of definite-spin
representations of the Lorentz group for particle states in QFT.
QFT = quantum field theory. Note it is inherently relativistic,
hence the use of the Lorentz group.
> Where does the Angular Momentum of the particle derive from?
From a combination of spin and configuration, when one uses angular momentum
eigenfunctions to represent the configuration in QFT. When one uses other
eigenfunctions then a given particle usually does not have a definite angular
momentum.
If one does not use A.M. eigenfunctions, it is both difficult
and risky to attempt to discuss "the" angular momentum.
> Does the ZERO-SPIN hide into every particle or come outside?
Hmmm. In QFT, spin is intrinsic to the particle. Including zero. That is, a
given particle is modeled by a state that involves the appropriate definite-spin
representation of the Lorentz group.
> Does the Angular Momentum of the particle ( h*) come outside?
Hmmmm. In QFT, angular momentum is not intrinsic to the particle.
> And what is the cause of fluctuations ?
Hmmm. The word "cause" is inappropriate. In QFT, fluctuations occur in general
when measurements are made on a system that is not in an eigenfunction of the
operator corresponding to the measurement.
> The particle�s movement is reason of a temperature and fluctuations.
Hmmm. Plus initial conditions.
> Than quicker the particle�s movement - a temperature is higher.
Hmmmm. Not necessarily. The concept "temperature" does not apply to a single
particle. For a gas, motion of its center-of-momentum does not affect its
temperature (which is defined in its center-of-momentum inertial frame, and is
related to the mean kinetic energy of the gas particles in that frame). This is
more general than QFT.
> The cause of fluctuations is Temperature. Only?
No. See above. Fluctuations are much more general than temperature.
> What is the reason of particle�s movement ?
Hmmm. Such questions are beyond the realm of science. We MODEL such movements as
due to initial conditions and fluctuations (see above for what those are -- they
AREN'T what you seem to think).
> Does the reason hide into every particle or the reason is outside ?
I have no idea how to answer such a question that is outside the realm of
science. Our theories model motion as due to initial conditions and interactions
with other particles and fields. But the "source" of the initial conditions, and
the "source" of the other particles and fields, are outside the purview of the
model.
> Is Mass a function of its temperature T and its speed only?
Neither. In modern physics, mass is intrinsic to a given particle. For a
collection of particles, "mass" may not be well defined (e.g. if external fields
are present); if it is well defined (e.g. for a spatially bounded collection of
particles that interact only with each other), then it is a function of the
particles' energies in the overall center-of-momentum frame of the collection
(each particle's energy of course includes its mass).
> Can the cause of fluctuations be also a Spin ?
Sure. See above -- in QFT if you make a measurement of a system not in an
eigenfunction of the operator corresponding to the measurement, fluctuations
will in general occur. The state of a system includes its spin.
Of course for some systems the results of some measurements do
not depend on the spin (i.e. there is degeneracy), so for such
systems and measurements, spin will not induce fluctuations.
> How can the Spin of Quantum Particle and the Temperature
> of Gravity Mass live together?
Again, I have no idea how to answer such a question outside the realm of
science. Our current models all model spin, temperature, gravity, and mass
independently (though they are inter-related).
This is far more complicated than a naive set of "20 questions" can ever
describe. You need to STUDY quantum field theory. To make that accessible, you
need to STUDY just about all of modern physics. Most people who understand this
have spent >6 years (full time) in college-level study of modern physics.
You might try: Zee, _Quantum_Field_Theory_in_a_Nutshell_,
but frankly from your writings around here I doubt you have
the background to understand even such a general and elementary
book on the subject.
The relationship of QFT to gravity is unclear, and is currently a topic of
intense research. That requires reading the literature; of course to understand
it you first need to understand QFT....
Tom Roberts