Phys. Rev. A 71, 012503 (2005) [10 pages]Higher-order effective Hamiltonian for light atomic systems
Krzysztof Pachucki * Received 29 September 2004; published 19 January 2005 We present the derivation of the effective higher-order Hamiltonian, which gives an mα6 contribution to the energy levels of an arbitrary light atom. The derivation is based on the Foldy-Wouthuysen transformation of the one-particle Dirac Hamiltonian followed by perturbative expansion of the many-particle Green function. The obtained results can be used for the high precision calculation of relativistic effects in atomic systems. ©2005 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevA.71.012503 * Electronic address: krp@fuw.edu.pl; www.fuw.edu.pl/ ̃krp [ Abstract | Previous article | Next article | Issue 1 ] |
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