An efficient and accurate decomposition of the Fermi operator.

We present a method to compute the Fermi function of the Hamiltonian for a system of independent fermions based on an exact decomposition of the grand-canonical potential. This scheme does not rely on the localization of the orbitals and is insensitive to ill-conditioned Hamiltonians. It lends itsel...

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Bibliographic Details
Main Authors: Ceriotti, M, Kühne, T, Parrinello, M
Format: Journal article
Language:English
Published: 2008