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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Gauge Theories
Speaker(s): Oliver Rosten
Abstract: At first sight, the ERG does not sit well with gauge theories: a naive implementation of the momentum cutoff central to the ERG breaks gauge invariance. However, things are not as they seem. Not only is it possible to construct a gauge invariant cutoff, but it is possible to construct manifestly gauge invariant ERGs. I will discuss the formulation, what has been achieved to date, and what can reasonably be hoped for in the future.
Date: 07/05/2008 - 10:30 am
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