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Exact density functional theory with the density matrix renormalization group
density functional theory density matrix renormalization group electronic structure models
2011/8/17
Abstract: Combining density functional theory with controlled numerical methods for strongly correlated systems could greatly extend the range of both. We use the density matrix renormalization group ...
Perturbative renormalization factors and O(a^2) corrections for lattice 4-fermion operators with improved fermion/gluon actions
Perturbative renormalization factors O(a^2) corrections lattice 4-fermion operators improved fermion/gluon actions
2011/1/14
In this work we calculate the corrections to the amputated Green’s functions of 4-fermion
operators, in 1-loop Lattice Perturbation theory. One of the novel aspects of our calculations
is that they ...