Gauge symmetry from decoupling
Gauge symmetries emerge from a redundant description of the effective action for light degrees of freedom after the decoupling of heavy modes. This redundant description avoids the use of explicit constraints in configuration space. For non-linear constraints the gauge symmetries are non-linear. In...
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| Main Author: | |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2017
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| In: |
Nuclear physics. B, Particle physics
Year: 2016, Volume: 915, Pages: 135-167 |
| ISSN: | 1873-1562 |
| DOI: | 10.1016/j.nuclphysb.2016.12.008 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1016/j.nuclphysb.2016.12.008
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| Author Notes: | C. Wetterich |
| Summary: | Gauge symmetries emerge from a redundant description of the effective action for light degrees of freedom after the decoupling of heavy modes. This redundant description avoids the use of explicit constraints in configuration space. For non-linear constraints the gauge symmetries are non-linear. In a quantum field theory setting the gauge symmetries are local and can describe Yang-Mills theories or quantum gravity. We formulate gauge invariant fields that correspond to the non-linear light degrees of freedom. In the context of functional renormalization gauge symmetries can emerge if the flow generates or preserves large mass-like terms for the heavy degrees of freedom. They correspond to a particular form of gauge fixing terms in quantum field theories. |
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| Item Description: | Published online: 12 December 2016 Gesehen am 25.07.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1873-1562 |
| DOI: | 10.1016/j.nuclphysb.2016.12.008 |