/sci/ - Science & Math

[Anonymous No.15515170]

Can magnetic monopoles exist?

[Anonymous No.15515188]

Pretty much any extension of the standard model has them, and they are possibly important for confinement in QCD

[Cult of Passion No.15515189]

>>15515170
You create a division where none exists, blue/red. All magnetics are mono-poles.

>one side of the ball is getting bigger
>other side is getting smaller
>two

[Anonymous No.15515227]

>>15515170
all experimental evidence to date has come up empty handed. as far as we can tell, all magnetic phenomenon is due to electric charges in motion.
i use them in advanced electromagnetic theory to make certain types of boundary conditions convenient, though (but i usually just think about magnetic charge current densities and not accumulation of magnetic charge).

[Anonymous No.15515729]

>>15515170
Can left exist without a right?

[Anonymous No.15515735]

>>15515170
There is no law of physics saying they can't exist, in fact some physicists think that is why they do. The only reason there are not included in Maxwell's Equations is solely down to the fact they have never been observed.

[Anonymous No.15515738]

>>15515729
Can a positive exist without a negative?

[Anonymous No.15517140]

>>15515735
You don't quite understand the issue. The idea that electromagnetism is a gauge theory (the electric and magnetic fields may be derived from the scalar and vector potentials) is taken as a sacred principle, and it is important for dealing with electromagnetism quantum mechanically. How do you have magnetic monopoles if B = curl A? On the face of it it is not possible since this implies the divergence of B vanishes.

Actually it is possible if electromagnetism is an effective theory and there are points in space where it is invalid, so that the gauge field can have a non-trivial topology around these holes. Similarly electromagnetism on a discrete lattice generically has magnetic monopoles.

[Answer No.15518760]

In the distant and cold future magnetic monopoles exist.