Mixed Charge-Spin Response Functions of an Arbitrarily Polarized Electron Gas

Details Mixed Charge-Spin Response Functions of an Arbitrarily Polarized Electron Gas Mixed Charge-Spin Response Functions of an Arbitrarily Polarized Electron Gas

1999-05-10

arxiv.org/abs/cond-mat/9905117v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages

Scientific paper

10.1016/S0038-1098(00)00300-8

In this paper, using different approaches we demonstrate the equality of the two mixed charge-spin response functions of a spin-polarized electron gas when orbital effects are negligible. Within a generalized STLS approximation we show that the two mixed responses are equal. We also present arguments for the equality of the two dynamic responses by considering a symmetry of the effective screened interaction between two opposite spin electrons. Furthermore, using the reflection symmetry of the system and the fact that the hamiltonian is real we prove rigorously that the two responses coincide identically.

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