On ground state correlations in nuclear many-body systems

The ground state correlation in model systems with different interaction strength and particle numbers has been studied. Numerical results tell us that if the ground state shape is quite stable, the ground state correlation can be approximately explained by the zero-point vibration based on the static ground state. It is rather important to carry out first the static self consistent field calculation. But around the critical point where the monopole deformation begins to occur, behaviors of the ground state correlation become very complicate and sensitive to the variation of controlling parameters. It seems to indicate that particular attentions should be paid to ground state correlations in further studies of light nuclei near the drip line