Finite basis set approach to the two-centre Dirac problem in Cassini coordinates
Résumé
We lay out a new approach to solving the two–center Dirac eigenvalue problem. It is based on application of B–spline basis sets constructed in Cassini coordinates. The approach provides a very promising way for the theoretical description of various atomic processes such as charge transfer, excitation, ionization and electron–positron pair production, that accompany slow collisions of heavy ions. Moreover, yielding a (quasi) complete set of eigensolutions, the finite–basis–set method allows a systematic analysis of the quantum electrodynamics (QED) corrections to the energy levels of heavy quasi–molecules formed in these collisions.
Domaines
Physique [physics]
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PEER_stage2_10.1088%2F0953-4075%2F43%2F23%2F235207.pdf (251.05 Ko)
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