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Journal of Physics Condensed Matter

Spin-susceptibility and spin-density excitations of the quasi-one-dimensional interacting electron gas: many-body effects for cylindrical confinement

Alfred Gold, L. Calmels

Published Jun 1, 1998• 3 citations
Publisher

Abstract

We calculate the ground-state energy of a quasi-one-dimensional electron gas with Coulomb interaction depending on the spin-polarization parameter and the Wigner-Seitz parameter . Cylindrical quantum wires of radius are considered. We describe the pair-correlation function g(z = 0) as a function of and . We derive the spin-susceptibility as a function of and in different approximations. Numerical results obtained for the spin-susceptibility are fitted by an analytical expression. Collective modes (charge-density and spin-density excitations) in cylindrical quantum wires are described and the validity range of our calculation is discussed.

DOI
10.1088/0953-8984/10/21/018

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