Third-neighbor and other four-point correlation functions of spin-1/2 XXZ chain
نویسندگان
چکیده
The correlation functions of the spin-1/2 XXZ chain in the ground state were ex-pressed in the form of multiple integrals for −1 < ∆ ≤ 1 and 1 < ∆. In particular,adjacent four-point correlation functions were given as certain four-dimensional inte-grals. We show that these integrals can be reduced to polynomials with respect tospecific one-dimensional integrals. The results give the polynomial representation ofthe third-neighbor correlation functions. [email protected]@[email protected]@stat.phys.titech.ac.jp1
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