Application of a numerical renormalization group procedure to an elementary anharmonic oscillator

Krzysztof Piotr Wójcik

The canonical quantum Hamiltonian eigenvalue problem for an anharmonic oscillator with a Lagrangian L = \dotϕ^2/2 - m^2 ϕ^2/2 - g m^3 ϕ^4 is numerically solved in two ways. One of…