Stuttgart 2012 – scientific programme

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A: Fachverband Atomphysik

A 19: Atomic systems in external fields II

A 19.5: Talk

Tuesday, March 13, 2012, 15:00–15:15, V57.05

Correlation function quantum Monte Carlo calculations for ground and excited states of helium and lithium in neutron star magnetic fields — •Sebastian Boblest, Dirk Meyer, and Günter Wunner — Universität Stuttgart

We present results of the application of the correlation function quantum Monte Carlo method to the calculation of atomic data of helium and lithium in neutron star magnetic fields, using symmetry adapted basis sets computed with a Hartree-Fock-Roothaan method. These results include energy levels for ground and excited states at different magnetic field strengths with unprecedented accuracy. The atomic data obtained in these and future calculations for medium-heavy atoms are of relevance to the analysis of features discovered in the thermal emission spectra of isolated neutron stars.