Adiabatic method for positronic atoms and molecules

Authors: Strasburger, Krzysztof; Wołcyrz, Małgorzata

Source: Molecular Physics, Volume 105, Number 4, February 2007 , pp. 467-476(10)

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Abstract:

The adiabatic separation of electronic and positronic degrees of freedom is proposed. The positronic charge in expressions for the potential energy is partitioned between the electronic and positronic Hamiltonians. This partitioning assures an acceptable electron density distribution around the positron. Our adiabatic method gives good values of binding energies and annihilation rates for model systems, in which the positron is weakly bound. On the other hand, it does not work well if the wave function contains a significant contribution of the positronium cluster.

Document Type: Research article

DOI: http://dx.doi.org/10.1080/00268970701217953

Affiliations: 1: Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wrocław, Poland

Publication date: 2007-02-01

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