Contac相互作用、电动力学中的Gamma收敛和(Nelson)极化子
Contac interactions, Gamma convergence in Electrodynamics and the (Nelson) Polaron
摘要:
极化子是一个“极化”场的量子,它起源于一个大质量的可极化粒子与一个光子的“接触”相互作用[D1][D2]。我们证明了这个过程会产生束缚态。每个束缚态携带一个光子场的表示,它与Fock表示不等价;我们称它们为“Nelson极化子”。为了在数学上描述接触相互作用,我们使用Gamma收敛,变分工具。
英文摘要:
The Polaron is the quantum of a "Polarization" field originated by the "contact" interaction [D1][D2] of a massive polarizable particle with a photon. We prove that this process produces bound states. Each bound state carries a representation of the photon field that is inequivalent to the Fock representation; we call them "Nelson Polarons". To describe mathematically the contact interaction we make use of Gamma convergence, a variational tool.
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