Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 129, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2958921
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We implement the minimax approximation for the decomposition of energy denominators in Laplace-transformed Moller-Plesset perturbation theories. The best approximation is defined by minimizing the Chebyshev norm of the quadrature error. The application to the Laplace-transformed second order perturbation theory clearly shows that the present method is much more accurate than other numerical quadratures. It is also shown that the error in the energy decays almost exponentially with respect to the number of quadrature points. (C) 2008 American Institute of Physics.
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