Figure 1

Condensate fraction as a function of \(\gamma ^{3/2}=\sqrt{a_s^3 n}\) and the adimensional temperature \(T^* = (mk_\text {B}/\hbar ^2 n^{2/3})T\). The condensate fraction at \(T^*=0\) decreases linearly with \(\sqrt{a_s^3 n}\) according to the Bogoliubov formula (8). The yellow line follows the maximum of \(n_0/n\) as \(T^*\) varies.