Effective chiral-spin Hamiltonian for odd-numbered coupled Heisenberg chains
نویسندگان
چکیده
منابع مشابه
Effective chiral-spin Hamiltonian for odd-numbered coupled Heisenberg chains.
An L×∞ system of odd number of coupled Heisenberg spin chains is studied using a degenerate perturbation theory, where L is the number of coupled chains. An effective chain Hamiltonian is derived explicitly in terms of two spin half degrees of freedom of a closed chain of L sites, valid in the regime the inter-chain coupling is stronger than the intra-chain coupling. The spin gap has been calcu...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1994
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.50.16109