Is there such thing as plasma fusion if so how does it work?
Magnetic confinement of a hydrogen plasma (deuterium and tritium) is one possibility for fusion. Basic the plasma is heated to a temperature at which the nuclei collide and fuse. It only makes commerical sense if the useful energy output from the fusion reaction exceeds the energy input to heat and confine the plasma.
The sun is an example of fusion occuring in the plasma. The is not constrained as are terrestrial plasmas. The suns gravity holds the plasma under high pressures and densities, much greater than those achievable in terrestrial plasmas.
All fusion done so far is "plasma fusion" as far as I know. The temperatures you must heat the fuel to ionizes it completely and turns it into a plasma.
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