Linked cluster expansions on non-trivial topologies
نویسندگان
چکیده
منابع مشابه
Linked Cluster Expansions on non-trivial topologies
Linked cluster expansions provide a useful tool both for analytical and numerical investigations of lattice field theories. The expansion parameter is the interaction strength fields at neighboured lattice sites are coupled. They result into convergent series for free energies, correlation functions and susceptibilities. The expansions have been generalized to field theories at finite temperatu...
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An exact expression for the Green function of a purely fermionic system moving on the manifold R× ΣD−1, where ΣD−1 is a (D − 1)-torus, is found. This expression involves the bosonic analog of χn = e inθ corresponding to the irreducible representation for the n-th class of homotopy and in the fermionic case for D = 2 and 3, χn is a measure of the statistics of the particles. For higher dimension...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1997
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(96)00797-9