Convergent sequences of perturbative approximations for the anharmonic oscillator I. Harmonic approach
Bellet, B. · Garcia, P. · Neveu, and A.
Original · EN
We present numerical evidence that a simple variational improvement of the ordinary perturbation theory of the quantum anharmonic oscillator can give a convergent sequence of approximations even in the extreme strong coupling limit, the purely anharmonic case. Some of the new techniques of this paper can be extended to renormalizable field theories.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.