6533b836fe1ef96bd12a08b0

RESEARCH PRODUCT

Strong-coupling expansion for the anharomonic oscillators −d2/dx 2+x 2+λx 2N

R. GuardiolaM. A. SolisJ. Ros

subject

Coupling constantPhysicssymbols.namesakeQuantum mechanicsAnharmonicityExtrapolationsymbolsStrong couplingPadé approximantHamiltonian (quantum mechanics)Ground stateHarmonic oscillator

description

A perturbation expansion based on a modified and scaled harmonic oscillator combined with Pade extrapolation techniques has been used to determine the expansion of the ground-state energy in fractional and negative powers of the coupling constant, valid for large values of λ.

https://doi.org/10.1007/bf02723178