The Effective Action for Local Composite Operators ${\Phi }^2(x)$ and ${\Phi }^4(x)$

Anna Okopińska

The generating functionals for the local composite operators, ${\Phi }^2(x)$ and ${\Phi }^4(x)$, are used to study excitations in the scalar quantum field theory with $\lambda {\Phi }^4$ interaction. The e…