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arXiv · 0806.2197

Projection Method for Exact Diagonalization in the Strong Coupling Limit for Frustrated Models with Highly Degenerate Ground States

K. Matsuda·S. Miyahara·N. Furukawa
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Abstract

In this paper, we carry out a new technique named projection ED and indicate that it is applicable to the frustrated models, e.g., XXZ spin-1/2 Heisenberg and spinless fermion t-V models, in the strong coupling limit with highly degenerate ground states in a general way. As an example, we deal with a spinless fermion t-V model on a triangular lattice and show the usefulness of the method.

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K. Matsuda, S. Miyahara, N. Furukawa. 2008-06-13. Projection Method for Exact Diagonalization in the Strong Coupling Limit for Frustrated Models with Highly Degenerate Ground States. https://doi.org/10.1143/jpsj.77.085002

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