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Feynman path-integral approach to the QED3 theory of the pseudogap

Daniel E. Sheehy
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Abstract

In this work the connection between vortex condensation in a d-wave superconductor and the QED$_3$ gauge theory of the pseudogap is elucidated. The approach taken circumvents the use of the standard Franz-Tesanovic gauge transformation, borrowing ideas from the path-integral analysis of the Aharonov-Bohm problem. An essential feature of this approach is that gauge-transformations which are prohibited on a particular multiply-connected manifold (e.g. a superconductor with vortices) can be successfully performed on the universal covering space associated with that manifold.

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Daniel E. Sheehy. 2003-10-30. Feynman path-integral approach to the QED3 theory of the pseudogap. https://doi.org/10.1142/s0217979203022842

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