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Reflection amplitudes in non-simply laced Toda theories and Thermodynamic Bethe Ansatz

Title
Reflection amplitudes in non-simply laced Toda theories and Thermodynamic Bethe Ansatz
Authors
Ahn C.Baseilhac P.Fateev V.A.Kim C.Rim C.
Ewha Authors
안창림
SCOPUS Author ID
안창림scopus
Issue Date
2000
Journal Title
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693JCR Link
Citation
vol. 481, no. 1, pp. 114 - 124
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We study the ultraviolet asymptotics in non-simply laced affine Toda theories considering them as perturbed non-affine Toda theories, which possess the extended conformal symmetry. We calculate the reflection amplitudes, in non-affine Toda theories and use them to derive the quantization condition for the vacuum wave function, describing zero-mode dynamics. The solution of this quantization conditions for the ground state energy determines the UV asymptotics of the effective central charge. These asymptotics are in a good agreement with Thermodynamic Bethe Ansatz (TBA) results. To make the comparison with TBA possible, we give the exact relations between parameters of the action and masses of particles as well as the bulk free energies for non-simply laced affine Toda theories. (C) 2000 Elsevier Science B.V.
DOI
10.1016/S0370-2693(00)00417-2
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자연과학대학 > 물리학전공 > Journal papers
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