On the second-neighbor correlator in 1D XXX quantum antiferromagnetic spin chain

Abstract

We have calculated the energy per site for the ground state of antiferromagnetic quantum spin chain with variable range exchange $h(j-k)\propto {\sinh }^{2}a{\sinh }^{-2}a(j-k)$ in the framework of the asymptotic Bethe ansatz. By expanding it in powers of $e^{-2a}$, we have confirmed the value of the second-neighbor correlator for the model with nearest-neighbor exchange obtained earlier in the atomic limit of the Hubbard chain.

6 pages, Latex

References in corpus (1)

• Correlation Function of the Spin-1/2 XXX Antiferromagnet

Cited by in corpus (9)

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