Package models

Definition of the properties of various integrable models, in particular numeric evaluation of the function \(F_\mathrm{min}\).

See: Description

Package models Description

Definition of the properties of various integrable models, in particular numeric evaluation of the function \(F_\mathrm{min}\). Integrable models are defined as subclasses of an abstract base class, IntegrableModel. Their only property of interest to us in the present context is the function \(\theta \mapsto F_\mathrm{min}(\theta+i\pi)\). In some cases, such as the Ising model, this expression can be computed directly from elementary functions, whereas for the sinh-Gordon and related models, this involves numerical approximation of an integral.