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

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

2002-06-12

arxiv.org/abs/cond-mat/0206216v3

Physics

Condensed Matter

Superconductivity

15 pages, 1 Figure. Int. J. Mod. Phys. B 17, 4509 (2003). Minor changes from previous version

Scientific paper

10.1142/S0217979203022842

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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