The QCD Trace Anomaly as a Vacuum Effect (The vacuum is a medium is the message!)
arXiv:hep-th/9407139 · doi:10.1006/aphy.1995.1086
Abstract
We use arguments taken from the electrodynamics of media to deduce the QCD trace anomaly from the expression for the vacuum energy in the presence of an external color magnetic field.
18 pages, USITP 94-11
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