Physics – Plasma Physics
Scientific paper
2008-03-04
EPL 84 (2008) pp.20011-1-5 (under a different title)
Physics
Plasma Physics
Error corrected, extensive rewrite, 4 pages, 1 figure
Scientific paper
10.1209/0295-5075/84/20011
We calculate the energy of a homogeneous one component plasma and find that the energy is lower for correlated motions of the particles as compared to uncorrelated motion. Our starting point is the conserved approximately relativistic (Darwin) energy for a system of electromagnetically interacting particles that arises from the neglect of radiation. For the idealized model of a homogeneous one component plasma the energy only depends on the particle canonical momenta and the vector potential. The vector potential is then calculated in terms of the canonical momenta using recent theoretical advances and the plasma Hamiltonian is obtained. The result can be understood either as due to the energy lowering caused by the attraction of parallel currents or, alternatively, as due to the inductive inertia associated with the flow of net current.
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