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On the Significance of the Quantity "A Squared"

F. V. Gubarev·L. Stodolsky·V. I. Zakharov
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Abstract

We consider the gauge potential A and argue that the minimum value of the volume integral of A squared (in Euclidean space) may have physical meaning, particularly in connection with the existence of topological structures. A lattice simulation comparing compact and non-compact ``photodynamics'' shows a jump in this quantity at the phase transition, supporting this idea.

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F. V. Gubarev, L. Stodolsky, V. I. Zakharov. 2000-10-06. On the Significance of the Quantity "A Squared". https://doi.org/10.1103/physrevlett.86.2220

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