Inter-plaquette correlations in U(1) Hamiltonian lattice gauge system

N. J. Davidson, R. F. Bishop

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    The coupled-cluster method is a very powerful method of quantum many-body theory which has recently been applied to Hamiltonian formulations of lattice gauge field theories. Previous calculations in the U(1) model in 2+1 dimensions have employed a local approximation scheme in which only correlations between adjacent plaquettes are taken into account. Here, we extend these calculations to include longer-ranged two-plaquette correlations, and also apply the localapproximation scheme to the U(1) model in 3+1 dimensions.
    Original languageEnglish
    Pages (from-to)817-819
    Number of pages3
    JournalNuclear Physics B (Proceedings Supplements)
    Publication statusPublished - 1995


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