Wednesday, July 24, 2013

1307.6060 (M. V. Beznogov et al.)

Diffusion and Coulomb separation of ions in dense matter    [PDF]

M. V. Beznogov, D. G. Yakovlev
We analyze diffusion equations in strongly coupled Coulomb mixtures of ions in dense stellar matter. Strong coupling of ions in the presence of gravitational forces and electric fields (induced by plasma polarization in the presence of gravity) produces a specific diffusion current which can separate ions with the same A/Z (mass to charge number) ratios but different Z. This Coulomb separation of ions can be important for evolution of white dwarfs and neutron stars.
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