Projects per year
Abstract / Description of output
In the holographic approach to cosmology, cosmological observables are described in terms of correlators of a three-dimensional boundary quantum field theory. As a concrete model, we study the 3D massless SU(N) scalar matrix field theory with a ϕ4�4 interaction. On the lattice, the energy-momentum tensor (EMT) in this theory can mix with the operator ϕ2�2. We utilize the Wilson Flow to renormalize the EMT on the lattice, and present numerical results for the mixing coefficient for N=2�=2. Obtaining the renormalized EMT will allow us to make predictions for the CMB power spectra in the regime where the dual QFT is non-perturbative.
Original language | English |
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Title of host publication | Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021) |
Publisher | Sissa Medialab Srl |
Pages | 1-10 |
Volume | 396 |
DOIs | |
Publication status | Published - 8 Jul 2022 |
Event | The 38th International Symposium on Lattice Field Theory - Massachusetts Institute of Technology, Cambridge, United States Duration: 26 Jul 2021 → 30 Jul 2021 Conference number: 38 https://indico.cern.ch/event/1006302/ |
Publication series
Name | Proceedings of Science |
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Publisher | Sissa Medilab |
ISSN (Electronic) | 1824-8039 |
Conference
Conference | The 38th International Symposium on Lattice Field Theory |
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Abbreviated title | LATTICE 2021 |
Country/Territory | United States |
City | Cambridge |
Period | 26/07/21 → 30/07/21 |
Internet address |
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European network for Particle physics, Lattice field theory and Extreme computing
1/01/19 → 30/09/23
Project: Research
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Particle Theory at the Higgs Centre
Ball, R., Boyle, P., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., O'Connell, D., Smillie, J. & Zwicky, R.
1/10/17 → 30/09/21
Project: Research