Boundary massive sine-Gordon model at the free Fermi limit and RG flow of Casimir energy
نویسنده
چکیده
RG flow of central charge ceff is investigated for the two boundary sine-Gordon model at the free Fermi limit. Thermodynamic Bethe ansatz approach is used to check the non-monotonic decreasing properties of ceff , its resonance, and the modification of ceff due to the mismatch of the periodicity of a Lagrangian parameter and that of the boundary scattering parameter. The detailed analysis uses the singularity structure of the system on the complex rapidity plane.
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تاریخ انتشار 2004