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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.33 no.s1 (2006), pp. 612-621
Finite Size Effects in Integrable Boundary Theories
Z. Bajnok1, L. Palla2, G. Takács1
1Theoretical Physics Research Group, Hungarian Academy of Sciences, 1117 Budapest, Pázmány Péter s. 1/A, Hungary
2Institute for Theoretical Physics, E¨otv¨os University, 1117 Budapest, Pázmány Péter s. 1/A, Hungary
go back1Theoretical Physics Research Group, Hungarian Academy of Sciences, 1117 Budapest, Pázmány Péter s. 1/A, Hungary
2Institute for Theoretical Physics, E¨otv¨os University, 1117 Budapest, Pázmány Péter s. 1/A, Hungary
Abstract. We derive a relation between leading finite size corrections for a 1+1 dimensional quantum field theory on a strip and scattering data, which is very similar in spirit to the approach pioneered by Lüscher for periodic boundary conditions. The consistency of the results is tested both analytically and numerically using thermodynamic Bethe Ansatz and Destri-de Vega nonlinear integral equation techniques.