SEARCH Articles Figures Tables Adiabatic states Adiabatic systems Molecular states Non-adiabatic coupling two-state molecular system Non-adiabaticity Two-state Two-state molecular system, non-adiabatic C2H-molecule: conical Two-state molecular system, non-adiabatic Herzberg-Longuet-Higgins phase Two-state molecular system, non-adiabatic intersections Two-state molecular system, non-adiabatic quantization Two-state molecular system, non-adiabatic single conical intersection solution Two-state molecular system, non-adiabatic systems Two-state molecular system, non-adiabatic systems Two-state molecular system, non-adiabatic transformation matrices Two-state system