Tuesday, November 29, 2011


Magnetic Monopoles, Theory or Truth?

Paul Feliciano Abreu   

We live in a world surrounded by enigmatic phenomena. One of the most present phenomena is the asymmetry that we find it in the magnetism and in the electricity, by that; there are no magnetic charges that can be compare to electric charges. A thing that is always there around us is the electrically charged particles like protons and electrons but nobody talks about an isolated magnetic charge, if something would have this charge will be the magnetic monopole. For this idea we will use a magnetic bar with a north pole and a south pole and cut it by half, next we will have two poles isolated but this thing will never be possible or if its possible is in just a rare occasion because the nature does not create magnetic monopoles, they can just be imagine and related to some idea like comparison, but this would not be a thing to stop studying or investigate them, because I think this could be found sooner or later. 

Picture of how should be form the magnetic monopoles

By other hand, we have electric monopoles that are electric charge particles very abundant in matter because every piece of it has a big number of electrons and protons that are authentic monopoles. But in the magnetism we cannot see this phenomenon because there do not exist nothing similar to electric monopoles but it should be interesting to find a case. The electromagnetic theory unifies the electric force and the magnetic force, because the electric charges work for both forces, in the electric force they generate the force and in the magnetic with the movement of the particles the magnetic force arises. An example of what could be a magnetic monopole is if we took a magnet bar really thin and about 1 kilometer of distance with a magnetic field at each end of the bar, because the ends are really separated and the bar is so thin that the lines of the magnetic field don’t surround the end of the magnet the unify in the bar creating a way back to the other end or creating a cord with a radial field (Dirac’s cord) or something like it. Going to Dirac’s theory he just wanted to explain the behavior of the relativistically moving electron, and so to allow the atom to be treated in a manner consistent with relativity. And for this theory he apply the next equation:

where
m is the rest mass of the electron,
c is the speed of light,
p is the momentum, understood to be an operator in the sense of the Schrödinger theory,
x and t are the space and time coordinates,
ħ is the reduced Planck constant, h divided by 2π.


Dirac strings or cords

After Dirac’s theory was proposed, physics accept the possible existance of magnetic monopoles. If these magnetic monopoles exist they will be producing a magnetic force, and also by their movements they could gain electric force. As a matter of fact these monopoles could be a great help to the universe density.

News of magnetic monopoles detected in a real magnet:
From: Science Daily webpage in Sep 03 2009 http://www.sciencedaily.com/releases/2009/09/090903163725.htm

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