(Non-)aligned gauges and global gauge symmetry breaking. (English) Zbl 1260.81132
Summary: The concept of (global) gauge symmetry breaking plays an important role in many areas of physics. Since the corresponding symmetry is a gauge symmetry, its breaking is actually gauge-dependent. Thus, it is possible to design gauges which restore the symmetry as good as possible. Such gauge constructions will be detailed here, illustrated with the use of lattice gauge theory. Their use will be discussed for the cases of the Higgs effect, high-baryon density color superconductors, and BRST symmetry.
MSC:
| 81R40 | Symmetry breaking in quantum theory |
| 81T13 | Yang-Mills and other gauge theories in quantum field theory |
| 81T70 | Quantization in field theory; cohomological methods |
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