We study the critical behavior of the systems dominated by Coulom-bic interaction. For this purpose we used the method of collective variables with a reference system. Starting from the Hamiltonian of the restricted primitive model (RPM), the simplest model of ionic fluids, we obtain the functional of the grand partition function given in terms of the two collective variables: the collective va...

The current paper is dedicated to developing a (3+1) decomposition for the minimal gravitational Standard-Model Extension. Our setting explicit diffeomorphism violation and we focus on background fields known in literature as $u$ $s^{\mu\nu}$. Hamiltonian formalism developed these contributions, which amounts deriving modified momentum constraints. We then study connection between constraints E...