Finite size corrections in massive Thirring model

Details Finite size corrections in massive Thirring model Finite size corrections in massive Thirring model

1997-06-10

arxiv.org/abs/hep-th/9706061v1

Phys.Rev. D58 (1998) 085011

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, Latex, 2 figures

Scientific paper

10.1103/PhysRevD.58.085011

We calculate for the first time the finite size corrections in the massive Thirring model. This is done by numerically solving the equations of periodic boundary conditions of the Bethe ansatz solution. It is found that the corresponding central charge extracted from the $1/L$ term is around 0.4 for the coupling constant of ${g_0}=-{\pi\over 4} $ and decreases down to zero when ${g_0}=-{\pi\over{3}}$. This is quite different from the predicted central charge of the sine-Gordon model.

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