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Showing 1 to 3 of 3 for “"Sine-Gordon Model"”.
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Soliton Scattering on Obstructions in Relativistic Theories
… and analytical considerations for a variety of models. First, we discuss the scattering properties of two models involving a $\varphi^{4}$ potential. In the first model the potential parameter is included in the potential and in the second model the potential parameter is included in the metric. …
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Universal properties of the entanglement entropy in quantum integrable models
… factors were studied for the roaming trajectory model, and the SU(3)2-homogenous sine-Gordon model. We then carry out a numerical study of the Δ-function of the twist field for these two models. In the fourth chapter we focus on the connection between the Δ-function of the twist field and …
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Aspects of Non-Perturbative Renormalization
… without violating the essential symmetry of the model: the periodicity. Both methods - the Wegner-Houghton and the Polchinski approaches - are inspired by Wilson's blocking construction in momentum space: the Wegner-Houghton method uses a sharp momentum cut-off and thus cannot be applied directly …