001package models; 002 003/** 004 * An integrable model of quantum field theory with one species of scalar particle. 005 * 006 * The only property that we require in our current context 007 * of the function \(F_\mathrm{min}\) on the line \(\mathbb{R} + i \pi\). 008 * This is represented by the (abstract) method <code>FminIpi</code>. 009 * 010 */ 011public abstract class IntegrableModel 012{ 013 014 /** 015 * Computes the value of \(F_\text{min}(\theta + i \pi)\) for given \(\theta\). 016 * This is always a real number in our context. 017 * 018 * @param theta the value of the real argument \(\theta\), see above 019 * @return the value of \(F_\text{min}(\theta + i \pi)\) 020 */ 021 public abstract double FminIpi(double theta); 022 023}