BETHE ANSATZ FOR THE ONE-DIMENSIONAL BOSON HUBBARD-MODEL

被引：51

作者：

KRAUTH, W

机构：

[1] National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.44.9772

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Bethe ansatz (BA) for the one-dimensional boson Hubbard model is studied. Even though the model cannot be solved exactly by this method, it is argued that it gives an excellent approximation for densities rho less-than-or-equal-to 1. This claim is substantiated by a detailed study of the internal consistency of the BA solution, and by comparison with quantum Monte Carlo simulations.

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页码：9772 / 9775

页数：4

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