Nonminimal hints for asymptotic safety
In the asymptotic-safety scenario for gravity, nonzero interactions are present in the ultraviolet. This property should also percolate into the matter sector. Symmetry-based arguments suggest that nonminimal derivative interactions of scalars with curvature tensors should therefore be present in th...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
8 January 2018
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| In: |
Physical review
Year: 2018, Volume: 97, Issue: 2 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.97.026002 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.97.026002 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.97.026002 
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| Author Notes: | Astrid Eichhorn, Stefan Lippoldt, and Vedran Skrinjar |
| Summary: | In the asymptotic-safety scenario for gravity, nonzero interactions are present in the ultraviolet. This property should also percolate into the matter sector. Symmetry-based arguments suggest that nonminimal derivative interactions of scalars with curvature tensors should therefore be present in the ultraviolet regime. We perform a nonminimal test of the viability of the asymptotic-safety scenario by working in a truncation of the renormalization group flow, where we discover the existence of an interacting fixed point for a corresponding nonminimal coupling. The back-coupling of such nonminimal interactions could in turn destroy the asymptotically safe fixed point in the gravity sector. As a key finding, we observe nontrivial indications of stability of the fixed-point properties under the impact of nonminimal derivative interactions, further strengthening the case for asymptotic safety in gravity-matter systems. |
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| Item Description: | Gesehen am 15.12.2020 |
| Physical Description: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.97.026002 |