Strong Coupling Limit of Bethe Ansatz Solutions in Massive Thirring Model

Details Strong Coupling Limit of Bethe Ansatz Solutions in Massive Thirring Model Strong Coupling Limit of Bethe Ansatz Solutions in Massive Thirring Model

1999-06-16

arxiv.org/abs/hep-th/9906120v2

Annals Phys. 282 (2000) 100-114

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, to appear in Ann. Phys. 281 (2000), May

Scientific paper

10.1006/aphy.2000.6030

We study the strong coupling limit of the Bethe ansatz solutions in the massive Thirring model. We find analytical expressions for the energy eigenvalues for the vacuum state as well as n-particle n- hole states. This formula is compared with the numerical results and is found to achieve a very good agreement. Also, it is found that the 2-particle 2- hole and higher particle-hole states describe n- free bosons states in this limit. The behaviors of the strong coupling limit of the boson mass for various model calculations are examined. We discuss an ambiguity of the coupling constant normalization due to the current regularization.

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