Extending the reach of strong coupling: An iterative technique for hamiltonian lattice models

J. Albert, J. Greensite, A. Patkós

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Abstract

We propose an iterative method for doing lattice strong-coupling-like calculations in a range of medium to weak couplings. The method is a modified Lanczos scheme, with greatly improved convergence properties. The technique is tested on the Mathieu equation and on a hamiltonian finite-chain XY model, with excellent results.

Original languageEnglish
Pages (from-to)405-409
Number of pages5
JournalPhysics Letters B
Volume138
Issue number5-6
DOIs
Publication statusPublished - Apr 26 1984

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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