Codes for "From megahertz to terahertz qubits encoded in molecular ions: theoretical analysis of dipole-forbidden spectroscopic transitions in N2+"

In folder "CreateBasisSet" are functions for diagonalizing the molecular Hamiltonian. Use "create_vec_v3.m". Adjust the size of the basis set inside the code. A complied coefficient matrix that was used in the paper is given: "BasisSet_v4_B70G0p2G_v01_N024_I02_E2_M1aS_M1S_v7p3.mat". This matrix can be used to plot all graphs that appear in the paper. The plotting scripts are also given: "Plots... .m" The script "Table_magic_v4.m" is used to find "magic" transitions.