The antisymmetrized geminal power (AGP) and sequential product of geminals(SPG) functions, the basis functions with symplectic symmetry, are linearly combined to calculate the ground state of the LiH molecule. The cal...The antisymmetrized geminal power (AGP) and sequential product of geminals(SPG) functions, the basis functions with symplectic symmetry, are linearly combined to calculate the ground state of the LiH molecule. The calculation results show that the AGP or SPG function gives the same ground state results as the linear combination.展开更多
Under quasispin scheme, a complete group theoretical classification of fermion states with symplectlc symmetry is proposed. Furthermore, the first and second order irreducible tensor operators are investigated in deta...Under quasispin scheme, a complete group theoretical classification of fermion states with symplectlc symmetry is proposed. Furthermore, the first and second order irreducible tensor operators are investigated in detail to approach the fermion states with explicit forms.展开更多
文摘The antisymmetrized geminal power (AGP) and sequential product of geminals(SPG) functions, the basis functions with symplectic symmetry, are linearly combined to calculate the ground state of the LiH molecule. The calculation results show that the AGP or SPG function gives the same ground state results as the linear combination.
基金Supported by the National Natural Science Foundation of China
文摘Under quasispin scheme, a complete group theoretical classification of fermion states with symplectlc symmetry is proposed. Furthermore, the first and second order irreducible tensor operators are investigated in detail to approach the fermion states with explicit forms.
