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4 papers · 2 filters
Zero Temperature Phases of the Electron Gas
G. Ortiz, M. Harris, P. Ballone
The stability of different phases of the three-dimensional non-relativistic electron gas is analyzed using stochastic methods. With decreasing density, we observe a {\it continuous…
Hyper-sparsity of the density matrix in a wavelet representation
S. Goedecker, O. V. Ivanov
O(N) methods are based on the decay properties of the density matrix in real space, an effect sometimes refered to as near-sightedness. We show, that in addition to this near-sight…
Third-Generation TB-LMTO
O. K. Andersen, C. Arcangeli, R. W. Tank +4
We describe the screened Korringa-Kohn-Rostoker (KKR) method and the third-generation linear muffin-tin orbital (LMTO) method for solving the single-particle Schroedinger equation…
The Decay Properties of the Finite Temperature Density Matrix in Metals
S. Goedecker
Using ordinary Fourier analysis, the asymptotic decay behavior of the density matrix F(r,r') is derived for the case of a metal at a finite electronic temperature. An oscillatory b…