Exact value of the ground state energy of the linear antiferromagnetic Heisenberg chain with nearest and next-nearest neighbour interactions

P.M. van den Broek

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    Abstract

    It is shown that the ground state energy of the hamiltonian H = Σ Si · Si+1 + γΣSi · Si+2 for the linear antiferromagnetic Heisenberg chain with nearest and next-nearest neighbour interactions is equal to -3/2 if γ = 1/2.
    Original languageUndefined
    Article number10.1016/0375-9601(80)90662-3
    Pages (from-to)261-262
    Number of pages2
    JournalPhysics letters A
    Volume77
    Issue number4
    DOIs
    Publication statusPublished - 26 May 1980

    Keywords

    • EWI-10060
    • IR-64077

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