Renormalization algorithm for the calculation of spectra of interacting quantum systems

Details Renormalization algorithm for the calculation of spectra of interacting quantum systems Renormalization algorithm for the calculation of spectra of interacting quantum systems

2005-04-27

arxiv.org/abs/cond-mat/0504717v2

Phys. Rev. B 73, 014410 (2006).

Physics

Condensed Matter

Strongly Correlated Electrons

Corrected version. We have added an appendix with an extended explanation of the implementation of our algorithm

Scientific paper

10.1103/PhysRevB.73.014410

We present an algorithm for the calculation of eigenstates with definite
linear momentum in quantum lattices. Our method is related to the Density
Matrix Renormalization Group, and makes use of the distribution of multipartite
entanglement to build variational wave--functions with translational symmetry.
Its virtues are shown in the study of bilinear--biquadratic S=1 chains.

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