Thermal Bethe-Ansatz Method for the Spin-1/2 XXZ Heisenberg Chain : General and Mathematical Physics

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概要

• 論文の詳細を見る

• A new method is proposed for calculating the free energy of the one-dimensional spin-1/2 XXZ Heisenberg model. The partition function is written in terms of the transfer matrix for a two-dimensional Ising system, whose maximum eigenvalue is obtained by the Bethe-ansatz method leading to the free energy in the thermodynamic limit. This method uses no such assumption as the completeness of the Bethe states that has been proved only partially and yields better results than the previous methods do.

• 理論物理学刊行会の論文
• 1989-04-25

著者

• Koma Tohru

  Department Of Physics Gakushuin University

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