Symmetric and anti-symmetric Landau parameters and magnetic properties of dense quark matter

Abstract

We calculate the dimensionless Fermi liquid parameters (FLPs), $F_{0,1}^{sym}$ and $F_{0,1}^{asym}$, for spin asymmetric dense quark matter. In general, the FLPs are infrared divergent due to the exchange of massless gluons. To remove such divergences, the Hard Density Loop (HDL) corrected gluon propagator is used. The FLPs so determined are then invoked to calculate magnetic properties such as magnetization $⟨M⟩$ and magnetic susceptibility ${\chi }_M$ of spin polarized quark matter. Finally, we investigate the possibility of magnetic instability by studying the density dependence of $⟨M⟩$ and ${\chi }_M$.

Comments: 14 pages, 5 figures, abstract and introduction modifified. Published in Phys. Rev. C. 81, 054906 (2010)