Demos.ConicalInter.SpinBoson

Spin-Boson systems in 2D

If harmonic potentials are added to the linear E x e Jahn-Teller system, the prototypical spin-boson Hamiltonian is obtained with quadratic potentials on the diagonals and linear terms on the off-diagonal entries of the (diabatic!) potential matrix (κ ≠ 0, ω ≠ 0, g=0). Due to the multiple passing of high energy wavepackets of the conical intersection, the quantum dynamics is governed by complex interference patterns.

Diabatic representation

Two-dimensional paraboloids intersecting each other along a straight line.

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

Adiabatic representation

Conical intersection at the origin. There exists also a one-dimensional model.

• Animated wavepacket
• Input data file
• Logfile output