Intra-Landau level polarization effect for a striped Hall gas

Details Intra-Landau level polarization effect for a striped Hall gas Intra-Landau level polarization effect for a striped Hall gas

2003-12-10

arxiv.org/abs/cond-mat/0312247v4

Phys. Rev. B 70, 035314 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

15 pages,15 figures, revtex4, published version

Scientific paper

10.1103/PhysRevB.70.035314

We calculate the polarization function including only intra-Landau level correlation effects of striped Hall gas. Using the polarization function, the dielectric function, the dispersion of the plasmon and the correlation energy are computed in a random phase approximation (RPA) and generalized random phase approximation (GRPA). The plasmon becomes anisotropic and gapless owing to the anisotropy of the striped Hall gas and two dimensionality of the quantum Hall system. The plasmon approximately agrees with the phonon derived before by the single mode approximation. The (G)RPA correlation energy is compared with other numerical calculations.

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