Hibridon: A program suite for time-independent non-reactive quantum scattering calculations

Hibridon is a program package to solve the close-coupled equations which occur in the time independent quantum treatment of inelastic atomic and molecular collisions. Gas-phase scattering, photodissociation, collisions of atoms and/or molecules with flat surfaces, and bound states of weakly-bound complexes can be treated. From calculation of the S matrix, integral and differential cross sections, stereodynamic (alignment and steric asymmetry) cross sections, as well as more specialized quantities, such as transport and tensor cross sections, and cross sections between hyperfine levels, and photodissociation amplitudes can be obtained. The program is capable of treating closed-shell systems where the nuclear motion takes place on a single Born-Oppenheimer potential as well as open-shell systems for which the nuclear motion can evolve on several coupled electronic (Born-Oppenheimer) potentials.Hibridon 是一款用于求解非弹性原子与分子碰撞的不含时量子力学处理中所出现的密耦方程（close-coupled equations）的程序包。可用于气相散射、光解离、原子或分子与平面表面的碰撞，以及弱束缚复合物的束缚态计算等场景。通过计算S矩阵（S matrix），可获得积分截面与微分截面、立体动力学（取向与空间不对称性）截面，以及输运截面、张量截面、超精细能级间截面等更为专门化的物理量，同时还可得到光解离振幅。该程序既能够处理核运动仅在单个玻恩-奥本海默（Born-Oppenheimer）势能面上开展的闭壳层系统，也可处理核运动可在多个耦合电子（玻恩-奥本海默）势能面上演化的开壳层系统。