Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2011-11-24
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 5 figures, Poster presentation at the 16th International Conference on Recent Progress in Many-Body Theories, Nov. 28
Scientific paper
We have implemented the single-site density matrix renormalization group algorithm for the variational optimization of SU(2) \times U(1) (spin and particle number) invariant matrix product states for general spin and particle number symmetric fermionic Hamiltonians. This class also includes non-relativistic quantum chemical systems within the Born-Oppenheimer approximation. High-accuracy ab-initio finite field results of the longitudinal static polarizabilities and second hyperpolarizabilities of one-dimensional hydrogen chains are obtained with the algorithm. A comparison with other methods is made.
Ayers Paul W.
Limacher Peter A.
Neck Dimitri Van
Wouters Sebastian
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