POLARIZATION OF INSTANTONS AND GRAVITY

Gravity can arise in a conventional non-Abelian gauge theory in which a specific phenomenon takes place. Suppose there is a condensation of polarized instantons and anti-instantons in the vacuum state. Then the excitations of the gauge field in the classical approximation are des cribed through the variables of Riemann geometry satisfying the Einste in equations of general relativity. There are no dimensional coupling constants in the theory.