The phase diagram of the multi-matrix model with ABAB interaction from functional renormalization
At criticality, discrete quantum-gravity models are expected to give rise to continuum spacetime. Recent progress has established the functional renormalization group method in the context of such models as a practical tool to study their critical properties and to chart their phase diagrams. Here,...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
December 21, 2020
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| In: |
Journal of high energy physics
Year: 2020, Issue: 12 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP12(2020)131 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP12(2020)131
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| Author Notes: | Astrid Eichhorn, Antonio D. Pereira and Andreas G.A. Pithis |
| Summary: | At criticality, discrete quantum-gravity models are expected to give rise to continuum spacetime. Recent progress has established the functional renormalization group method in the context of such models as a practical tool to study their critical properties and to chart their phase diagrams. Here, we apply these techniques to the multi-matrix model with ABAB interaction potentially relevant for Lorentzian quantum gravity in 3 dimensions. We characterize the fixed-point structure and phase diagram of this model, paving the way for functional RG studies of more general multi-matrix or tensor models encoding causality and subjecting the technique to another strong test of its performance in discrete quantum gravity by comparing to known results. |
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| Item Description: | Gesehen am 04.02.2021 |
| Physical Description: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP12(2020)131 |