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Nonlinear Integral Equations for Thermodynamics of the U_{q}(\hat{sl(r+1)}) Perk-Schultz Model
Zengo Tsuboi, Minoru Takahashi
We propose a system of nonlinear integral equations (NLIE) which describes the thermodynamics of the U_{q}(\hat{sl(r+1)}) Perk-Schultz model. These NLIE correspond to a trigonometr…
Evaluation of Dynamic spin structure factor for the spin-1/2 XXZ chain in a magnetic field
Jun Sato, Masahiro Shiroishi, Minoru Takahashi
Transition rates and dynamic spin structure factor at zero temperature for the spin-1/2 XXZ chain at critical regime in a magnetic field are numerically evaluated in terms of the e…
Third-neighbor and other four-point correlation functions of spin-1/2 XXZ chain
Go Kato, Masahiro Shiroishi, Minoru Takahashi +1
The correlation functions of the spin-1/2 XXZ chain in the ground state were expressed in the form of multiple integrals for -1<Δ\leq 1 and 1<Δ. In particular, adjacent four-point…
Next Nearest-Neighbor Correlation Functions of the Spin-1/2 XXZ Chain at Massive Region
Minoru Takahashi, Go Kato, Masahiro Shiroishi
The second neighbor correlation functions of the spin- chain in the ground state are expressed in the form of three dimensional integrals. We show that these integrals…
Equivalence of TBA and QTM
Minoru Takahashi, Masahiro Shiroishi, Andreas Klumper
The traditional thermodynamic Bethe ansatz (TBA) equations for the XXZ model at are derived within the quantum transfer matrix (QTM) method. This provides further eviden…