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The Energy-Density Functional of an Electron Gas in Locally Linear Approximation of the One-Body Potential
1972
Zeitschrift fur Naturforschung A-A Journal of Physical Sciences
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AbstractFor a system of independent electrons moving in a common one-body potential V (r) an integral representation of Dirac's density matrix is evaluated in the approximation that V(r) at the point r is replaced by a linear potential with a gradient equal to the gradient of V at r. The particle density ᵨ, ∇ᵨ and the kinetic-energy density
doi:10.1515/zna-1972-8-903
fatcat:245hkwvizvbbjarzocl3vydxlm