Author/Authors :
Krivnov، نويسنده , , V.Ya. and Shamovsky، نويسنده , , I.L. and Tornau، نويسنده , , E.E. and Rosengren، نويسنده , , A.، نويسنده ,
Abstract :
Electron-correlation effects in fullerene molecule are investigated in the framework of the Hubbard model. The variational Monte Carlo method and the Gutzwiller wave function are used. The pairing energy of two electrons added to a fullerene molecule or ions is calculated. Contrary to the results obtained by second order perturbation theory the pair-binding is not found at intermediate interactions.
