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arXiv 1202.3189math-phmath.MP
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非相对论性QED中电子与外势耦合的有效动力学

Effective dynamics of an electron coupled to an external potential in non-relativistic QED

Volker Bach, Thomas Chen, Jeremy Faupin, Juerg Froehlich, Israel Michael Sigal

摘要:

在非相对论QED的框架下,我们证明了电子的重整化质量(在考虑了辐射修正后)在其对外部势力的响应中表现为运动质量。具体地说,我们研究了电子在缓慢变化的外部势和缓慢变化的初始条件下的动力学,并证明了,在很长一段时间内,它是准确地描述了一个薛定谔电子在相同的外部势和相同的初始数据,与动能运营商的重整化色散律的不变量QED模型。

英文摘要:

In the framework of non-relativistic QED, we show that the renormalized mass of the electron (after having taken into account radiative corrections) appears as the kinematic mass in its response to an external potential force. Specifically, we study the dynamics of an electron in a slowly varying external potential and with slowly varying initial conditions and prove that, for a long time, it is accurately described by an associated effective dynamics of a Schrödinger electron in the same external potential and for the same initial data, with a kinetic energy operator determined by the renormalized dispersion law of the translation-invariant QED model.

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