nonperturbative method
C46207
concept
A nonperturbative method is a theoretical or computational approach that captures the full behavior of a system without relying on expansions in a small parameter, allowing it to describe strong-coupling or highly nonlinear regimes where perturbation theory fails.
Observed surface forms (1)
- renormalization group approach ×1
Instances (2)
- worldline instanton method
- Wilsonian renormalization group via concept surface "renormalization group approach"