How are renormalizability and locality connected?

jakob1111
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Main Question or Discussion Point

In his paper Quantum Field Theory: renormalization and the renormalization group Zinn-Justin states:

Low energy physics does not depend on all the details of the microscopic model because some RG has an IR fixed point or at least a low dimension fixed surface. Of course at this stage the next more fundamental theory may still assume the form of a local quantum field theory, but ultimately locality will have to be abandoned.

Where does the connection between the fact that low energy physics does not depend on all details of the microscopic model and that "ultimately locality will have to be abandoned" come from?
 

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Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
 

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