Abstract
We use the recently developed variational perturbation theory to continue the renormalization constants of three-dimensional theories to the regime of strong bare coupling In this limit, they are found to behave as powers in thereby determining all critical exponents. Convergent strong-coupling expansions are found for all renormalization group functions which converge well even in the weak-coupling limit.
- Received 1 July 1997
DOI:https://doi.org/10.1103/PhysRevD.57.2264
©1998 American Physical Society