Abstract
We prove enhanced binding and increase of binding energies in the non- and semi-relativistic Pauli-Fierz models, for arbitrary values of the fine-structure constant and the ultra-violet cut-off, and discuss the resulting improvement of exponential localization of ground state eigenvectors. For the semi-relativistic model we also discuss the increase of the renormalized electron mass and determine the linear leading order term in the asymptotics of the self-energy, as the ultra-violet cut-off goes to infinity.
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Könenberg, M., Matte, O. On Enhanced Binding and Related Effectsin the Non- and Semi-Relativistic Pauli-Fierz Models. Commun. Math. Phys. 323, 635–661 (2013). https://doi.org/10.1007/s00220-013-1783-1
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DOI: https://doi.org/10.1007/s00220-013-1783-1