Numerical linked-cluster approach to quantum lattice models

Marcos Rigol, Tyler Bryant, Rajiv R.P. Singh

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We present a novel algorithm that allows one to obtain temperature dependent properties of quantum lattice models in the thermodynamic limit from exact diagonalization of small clusters. Our numerical linked-cluster approach provides a systematic framework to assess finite-size effects and is valid for any quantum lattice model. Unlike high temperature expansions, which have a finite radius of convergence in inverse temperature, these calculations are accurate at all temperatures provided the range of correlations is finite. We illustrate the power of our approach studying spin models on kagomé, triangular, and square lattices.

Original languageEnglish (US)
Article number187202
JournalPhysical Review Letters
Issue number18
Publication statusPublished - Nov 9 2006


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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