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We provide general determinant formulae for all n-particle form factors related to the trace of the energy momentum tensor and the analogue of the order and disorder operator in the $SU(3)_2$-homogeneous Sine-Gordon model. We employ the form factors related to the trace of the energy momentum tensor in the application of the c-theorem and find perfect agreement with the physical picture recently obtained by means of the thermodynamic Bethe ansatz. For finite resonance parameter we recover the expected WZNW-coset central charge and for infinite resonance parameter the theory decouples into two free fermions.
|Glasgow Author(s) Enlighten ID:||Korff, Dr Christian|
|Authors:||Castro-Alveredo, O., Fring, A., and Korff, C.|
|Subjects:||Q Science > QA Mathematics|
Q Science > QC Physics
|College/School:||College of Science and Engineering > School of Mathematics and Statistics > Mathematics|
|Research Group:||Integrable Systems and Mathematical Physics|
|Journal Name:||Physics Letters B|
|Published Online:||26 June 2000|
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