Bound States in QFT: Learn Modern Formalism & Applications

[Gvido_Anselmi]

Hello everybody.
I'm interested in some problems of bound states in external fields in QFT (especially QED).
I wonder are there any lectures/books or reviews which provide modern treatment of this subject?
I would like to learn more about general formalism and applications in QED (I already know something about from Weinberg and Itzykson&Zyuber).

 

[andron2000]

Paul Hoyer has some lecture on bound states in QED, QCD on the arxiv. Here is the link: http://arxiv.org/pdf/1402.5005v1.pdf

 

[Gvido_Anselmi]

Paul Hoyer has some lecture on bound states in QED, QCD on the arxiv. Here is the link: http://arxiv.org/pdf/1402.5005v1.pdf

Thank you!