Update documentation

Author: verga

Diff for: cp.html

@@ -230,7 +230,7 @@ <h3>Quantum phase transition in the mean-field and Markov&nbsp;approximations</h
 <div class="math">$$
 \begin{equation}
 \label{e:ML}
-  \rho(t+1) = u_- \sin^{2L}\frac{g}{2} \Big(\prod_x \E^{-\I g Y_x} Y_x \Big) \rho(t) \Big(\prod_x Y_x \E^{\I g Y_x} \Big) u_-^\dagger.
+  \rho(t+1) = u_- \sin^{2L}\frac{g}{2} \Big(\prod_x Y_x \Big) \rho(t) \Big(\prod_x Y_x \Big) u_-^\dagger.
 \end{equation}
 $$</div>
 <p>