Density limit in a first principles model of a magnetized plasma in the Debye--Hückel approximation

Details Density limit in a first principles model of a magnetized plasma in the Debye--Hückel approximation Density limit in a first principles model of a magnetized plasma in the Debye--Hückel approximation

2011-12-05

arxiv.org/abs/1112.1030v1

Physics

Condensed Matter

Statistical Mechanics

10 pages, 1 figure

Scientific paper

A crucial problem concerning a large variety of fusion devices is that the confinement due to an external magnetic field is lost above a critical density, while a widely accepted first principles explanation of such a fact is apparently lacking. In the present paper, making use of standard methods of statistical mechanics in the Debye--H\"uckel approximation, we give indications that for a plasma there exists a density threshold corresponding to a transition from order to chaos, the ordered motions being those in which the confining Lorentz force on a single electron prevails over the diffusive effect of the Coulomb forces. The density limit, which is proportional to the square of the magnetic field, turns out to fit not too badly the empirical data for plasma collapses in a large set of fusion devices.

Affiliated with

Also associated with

No associations

Rating

Density limit in a first principles model of a magnetized plasma in the Debye--Hückel approximation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Density limit in a first principles model of a magnetized plasma in the Debye--Hückel approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density limit in a first principles model of a magnetized plasma in the Debye--Hückel approximation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-396208