Physical consequences of the QED theta angle

Details Physical consequences of the QED theta angle Physical consequences of the QED theta angle

2010-12-14

arxiv.org/abs/1012.2906v1

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, latex, 1 figure

Scientific paper

We describe a simple gedanken experiment which illustrates the physical effects of the QED theta angle, a fundamental parameter of Nature that has yet to be measured. The effects are manifest in quantum phases analogous to those in the Aharonov-Bohm effect, although they are not intrinsically topological. We also derive the quantum phases using a functional Schrodinger approach, and generalize the results to non-Abelian gauge theories.

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