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arXiv math-ph/0110027math-phhep-thmath.MP
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量子电动力学模型中Binding Energies的一个束缚和质量重整化

A Bound on Binding Energies and Mass Renormalization in Models of Quantum Electrodynamics

Elliott H. Lieb, Michael Loss

摘要:

我们研究了三种著名的物质模型,它们分别与紫外截止、量子化辐射场和任意多个原子核的库仑势耦合。其中两个是非相对论性的:第一个使用动能(p+eA(x))^2,第二个使用保利-菲尔斯能量(p+eA(x))^2 +eσ \cdot B(x)。第三种是非对模型,它是相对论性的,用狄拉克算子D(A)代替了动能,但仅限于它的正谱子空间,即“电子子空间”。在每种情况下,我们都能给出{ \it结合}能的上限--与较不困难的基态能不同。这意味着,我们第一次相信,对这些理论中的质量重整化的估计,尽管是粗略的。

英文摘要:

We study three well known models of matter coupled to the ultraviolet cutoff, quantized radiation field and to the Coulomb potential of arbitrarily many nuclei. Two are nonrelativistic: the first uses the kinetic energy (p+eA(x))^2 and the second uses the Pauli-Fierz energy (p+eA(x))^2 +eσ\cdot B(x). The third, no-pair model, is relativistic and replaces the kinetic energy with the Dirac operator D(A), but restricted to its positive spectral subspace, which is the ``electron subspace''. In each case we are able to give an upper bound to the {\it binding} energy -- as distinct from the less difficult ground state energy. This implies, for the first time we believe, an estimate, albeit a crude one, of the mass renormalization in these theories.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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