H^+_2$ in a strong magnetic field described via a solvable model

Details H^+_2$ in a strong magnetic field described via a solvable model H^+_2$ in a strong magnetic field described via a solvable model

2004-03-17

arxiv.org/abs/math-ph/0403034v1

Physics

Mathematical Physics

Scientific paper

10.1088/0953-4075/37/11/008

We consider the hydrogen molecular ion $H^+_2$ in the presence of a strong homogeneous magnetic field. In this regime, the effective Hamiltonian is almost one dimensional with a potential energy which looks like a sum of two Dirac delta functions. This model is solvable, but not close enough to our exact Hamiltonian for relevant strenght of the magnnetic field. However we show that the correct values of the equilibrium distance as well as the binding energy of the ground state of the ion, can be obtained when incorporating perturbative corrections up to second order. Finally, we show that $ He_2^{3+}$ exists for sufficiently large magnetic fields.

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