双参数扩展巴里耶夫模型的精确解

IF 2.5 3区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

Nuclear Physics B Pub Date : 2024-08-08 DOI:10.1016/j.nuclphysb.2024.116652

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引用次数: 0

摘要

在量子反向散射方法的框架下，构建了一个具有两个独立参数的可精确求解的强相关电子模型，该模型可视为巴里耶夫模型的广义化。通过贝特方差法，推导出一组贝特方差方程。在热力学极限下，为了研究模型的基态，我们得到了贝特根密度积分方程。为了证实我们分析结果的准确性，我们进行了数值验证。

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Exact solution of a two-parameter extended Bariev model

An exactly solvable strongly correlated electron model with two independent parameters is constructed in the frame of the quantum inverse scattering method, which can be seen as a generalization of the Bariev model. Through the Bethe ansatz method, a set of Bethe ansatz equations is derived. In the thermodynamic limit, to study the ground state of the model, we obtain the integral equations for the density of Bethe roots. Numerical validation is done to confirm the accuracy of our analytic results.

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来源期刊

Nuclear Physics B 物理-物理：粒子与场物理

CiteScore

5.50

自引率

7.10%

发文量

302

审稿时长

1 months

期刊介绍： Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.