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Demos.ConicalInter.Linear

Burkhard Schmidt Ulf Lorenz

Linear E x e Jahn-Teller system: Double cone potentials

In linear approximation, i.e., for vanishing quadratic (and higher) terms (κ ≠ 0, ω=g=0), the two adiabatic potential energy surfaces of the corresponding Jahn-Teller system can be represented by a pair of funnels forming a linear conical intersection. A wavepacket touching the catchment area of the intersection is subject to strong nonadiabatic effects.

Diabatic representation

In a diabatic representation, the two diabatic potential energy surfaces intersect each other with a seam line along R2, while the coupling varies linearly with that coordinate.

Matlab version C++ version
Animated wavepacket
Input data file C++ input and the same as Python script
Logfile output Logfile output



Adiabatic representation

The corresponding adiabatic potential energy surfaces are represented by a pair of linear funnels forming a conical intersection. Note that the circular symmetry is accidental. Inclusion of quadratic terms will reduce it to a 3-fold rotational symmetry.


Related

Wiki: Demos.ConicalInter.Main

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