Excited states in some simple perturbed conformal field theories
نویسندگان
چکیده
The method of analytic continuation is used to find exact integral equations for a selection of finite-volume energy levels for the non-unitary minimal models M 2,2N +3 perturbed by their ϕ 13 operators. The N =2 case is studied in particular detail. Along the way, we find a number of general results which should be relevant to the study of excited states in other models.
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