Finite-size spectrum, magnon interactions, and magnetization of S=1 Heisenberg spin chains

Article

关键词: QUANTUM RENORMALIZATION-GROUPS;    FIELD-THEORY;    BOSE-CONDENSATION;    2 DIMENSIONS;    EDGE STATES;    ANTIFERROMAGNETS;    TEMPERATURE;    DYNAMICS;    MODELS;   

DOI  :  10.1103/PhysRevB.62.3786

来源: SCIE

【 摘 要 】

We report on density-matrix renormalization-group and analytical work on S=1 antiferromagnetic Heisenberg spin chains. We study the finite-size behavior within the framework of the nonlinear sigma model. We study the effect of magnon-magnon interactions on the finite-size spectrum and on the magnetization curve close to the critical magnetic field, determine the magnon scattering length, and compare it to the prediction from the nonlinear sigma model.

【 授权许可】

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