Infrared-finite algorithms in QED. II. The expansion of the groundstate of an atom interacting with the quantized radiation field (Q1002234)
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scientific article; zbMATH DE number 5518753
| Language | Label | Description | Also known as |
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| English | Infrared-finite algorithms in QED. II. The expansion of the groundstate of an atom interacting with the quantized radiation field |
scientific article; zbMATH DE number 5518753 |
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Infrared-finite algorithms in QED. II. The expansion of the groundstate of an atom interacting with the quantized radiation field (English)
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25 February 2009
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The purpose of this paper is to present an explicit and constructive algorithm enabling to calculate the groundstate and the groundstate energy of a non-relativistic atom minimally coupled to the quantized radiation field up to an error of arbitrary finite order in the fine-structure constant. An iterative construction is employed to remove infrared cut-off in photon momentum space and to produce a convergent algorithm.
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QED
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ground sate energy
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Pauli-Fierz model
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