Study On The Bipartite Entanglement In Nuclei

The feature of entanglement of two pair-states in0+eigenstates when the residualinteraction is pairing force is similar with the δ function residual interaction. At the same time,entanglement changes of two pair-states of0+energy eigenstate with the force strength are alsoanalyzed in the0d_5/2,1s_1/2,0d_3/2model. A little entanglement difference is on account of thedifference between parameterV0R0and G. If G is the same as V₀R₀, the result will be same.¹⁸₁₀Ne₈is the mirror nucleus of¹⁸₈O₁₀, the corresponding entanglement is approximately thesame because the values ofV0R0of them nearly equal to each other.Different with¹⁸₈O₁₀’s average entanglement, the average entanglement of5828Ni30’ssecond0+eigenstate is greatest, the second is the ground state, the third is the third0+eigenstate. Comparing the average entanglement of5828Ni30and188O10,we discover thatthe average entanglement of⁵⁸₂₈Ni₃₀’s ground states and the second0+eigenstate are greaterthan188O10’s, but the average entanglement of¹⁸₈O₁₀’s third0⁺eigenstate is greater than⁵⁸₂₈Ni₃₀’s. We cannot find a one-by-one relationship between average entanglement and energylevel, but can see that the average entanglement increases as the degeneracy degree andoccupied probability of the single particle level.