STRINGFLATION SIGNED
Inflation in String Theory - Connecting Quantum Gravity with Observations
Total Cost €
0EC-Contrib. €
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Project "STRINGFLATION" data sheet
The following table provides information about the project.
| Coordinator |
STIFTUNG DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY
Organization address contact info |
| Coordinator Country | Germany [DE] |
| Project website | http://www.desy.de/ |
| Total cost | 1˙854˙750 € |
| EC max contribution | 1˙854˙750 € (100%) |
| Programme |
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC)) |
| Code Call | ERC-2014-CoG |
| Funding Scheme | ERC-COG |
| Starting year | 2015 |
| Duration (year-month-day) | from 2015-10-01 to 2021-09-30 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | STIFTUNG DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY | DE (HAMBURG) | coordinator | 1˙854˙750.00 |
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Project objective
This project aims at predicting the energy scale of cosmological inflation and the strength of the inflationary gravitational wave signal from string theory. Observations of the cosmic microwave background (CMB) temperature fluctuations have drastically changed cosmology into quantitative science. The results provide strong evidence for two phases of accelerated expansion in our Universe. The late-time phase of acceleration, termed ’dark energy’, is consistent with an extremely small positive cosmological constant, while the evidence for a very early phase of acceleration increasingly supports cosmological inflation. Very recently, the BICEP2 experiment reported the detection of B-mode polarization in the CMB. Pending future corroboration, this may correspond to a detection of primordial gravitational waves with a fractional power of about 10% of the CMB temperature fluctuations. In the context of inflation this implies an inflationary energy scale close to the scale of Grand Unification, and a large field excursion of the inflationary scalar field. Hence, the inflationary scalar potential needs symmetries to protect it from dangerous quantum corrections. These features strongly motivate the study of high-scale inflation in string theory as a candidate theory of quantum gravity. We will determine the range of predictions for large-field high-scale inflation in string theory driven by the mechanism of axion monodromy, which was co-discovered by the PI. For this purpose, we will establish a catalog of primary sources for large field ranges from axion monodromy in combination with assistance effects from multiple axion fields. We will analyze the generic effects of the interplay between large-field models of inflation in string theory with its necessary prerequisite, moduli stabilization. Finally, we will study the distribution of inflation mechanisms among the many vacua of string theory. In combination, this gives us a first chance to make string theory testable.
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2017 |
Guido D’Amico, Nemanja Kaloper, Antonio Padilla, David Stefanyszyn, Alexander Westphal, George Zahariade An étude on global vacuum energy sequester published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP09(2017)074 |
Journal of High Energy Physics 2017/9 | 2020-01-24 |
| 2018 |
Jakob Moritz, Thomas Van Riet Racing through the swampland: de Sitter uplift vs. weak gravity published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP09(2018)099 |
Journal of High Energy Physics 2018/9 | 2020-01-24 |
| 2018 |
Mafalda Dias, Jonathan Frazer, M.C. David Marsh Seven lessons from manyfield inflation in random potentials published pages: 036-036, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/01/036 |
Journal of Cosmology and Astroparticle Physics 2018/01 | 2020-01-24 |
| 2017 |
Francisco Gil Pedro, Alexander Westphal Nonequilibrium random matrix theory: Transition probabilities published pages: , ISSN: 2470-0045, DOI: 10.1103/PhysRevE.95.032144 |
Physical Review E 95/3 | 2020-01-24 |
| 2016 |
Mafalda Dias, Jonathan Frazer, M. C. David Marsh Simple Emergent Power Spectra from Complex Inflationary Physics published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.117.141303 |
Physical Review Letters 117/14 | 2020-01-24 |
| 2018 |
David Ciupke Scalar Potential from Higher Derivative N=1 Superspace published pages: 55, ISSN: , DOI: 10.3204/PUBDB-2016-01898 |
DESY-16-021 DESY-16-021 | 2020-01-24 |
| 2016 |
Layne C. Price, Hiranya V. Peiris, Jonathan Frazer, Richard Easther Designing and testing inflationary models with Bayesian networks published pages: 049-049, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/02/049 |
Journal of Cosmology and Astroparticle Physics 2016/02 | 2020-01-24 |
| 2016 |
Mafalda Dias, Jonathan Frazer, David J. Mulryne, David Seery Numerical evaluation of the bispectrum in multiple field inflation—the transport approach with code published pages: 033-033, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/12/033 |
Journal of Cosmology and Astroparticle Physics 2016/12 | 2020-01-24 |
| 2018 |
Selim C. Hotinli, Jonathan Frazer, Andrew H. Jaffe, Joel Meyers, Layne C. Price, Ewan R. M. Tarrant Effect of reheating on predictions following multiple-field inflation published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.023511 |
Physical Review D 97/2 | 2020-01-24 |
| 2016 |
Arthur Hebecker, Fabrizio Rompineve, Alexander Westphal Axion monodromy and the weak gravity conjecture published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP04(2016)157 |
Journal of High Energy Physics 2016/4 | 2020-01-24 |
| 2018 |
Renata Kallosh, Andrei Linde, Diederik Roest, Alexander Westphal, Yusuke Yamada Fibre inflation and α-attractors published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP02(2018)117 |
Journal of High Energy Physics 2018/2 | 2020-01-24 |
| 2016 |
Benedict J. Broy, Dries Coone, Diederik Roest Plateau inflation from random non-minimal coupling published pages: 036-036, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/06/036 |
Journal of Cosmology and Astroparticle Physics 2016/06 | 2020-01-24 |
| 2016 |
Benedict J. Broy Corrections to n s and n t from high scale physics published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.94.103508 |
Physical Review D 94/10 | 2020-01-24 |
| 2018 |
Liam McAllister, Pedro Schwaller, Geraldine Servant, John Stout, Alexander Westphal Runaway relaxion monodromy published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP02(2018)124 |
Journal of High Energy Physics 2018/2 | 2020-01-24 |
| 2017 |
F. G. Pedro, A. Westphal Inflation with a graceful exit in a random landscape published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP03(2017)163 |
Journal of High Energy Physics 2017/3 | 2020-01-24 |
| 20189 |
Mafalda Dias, Jonathan Frazer, Ander Retolaza, Marco Scalisi, Alexander Westphal Pole N-flation published pages: 30, ISSN: , DOI: 10.3204/PUBDB-2018-01960 |
DESY-18-063 DESY-18-063 | 2020-01-24 |
| 2016 |
Arthur Hebecker, Jakob Moritz, Alexander Westphal, Lukas T. Witkowski Axion monodromy inflation with warped KK-modes published pages: 328-334, ISSN: 0370-2693, DOI: 10.1016/j.physletb.2016.01.030 |
Physics Letters B 754 | 2020-01-24 |
| 2018 |
Jakob Moritz, Ander Retolaza, Alexander Westphal Toward de Sitter space from ten dimensions published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.046010 |
Physical Review D 97/4 | 2020-01-24 |
| 2018 |
Mafalda Dias, Jonathan Frazer, Ander Retolaza, Alexander Westphal Primordial Gravitational Waves and the Swampland published pages: 1800063, ISSN: 0015-8208, DOI: 10.1002/prop.201800063 |
Fortschritte der Physik | 2020-01-24 |
| 2018 |
Mafalda Dias, Jonathan Frazer, Alexander Westphal Inflation as an Information Bottleneck - A strategy for identifying universality classes and making robust predictions published pages: , ISSN: , DOI: 10.3204/PUBDB-2018-03982 |
DESY-18-177 DESY-18-177 | 2020-01-24 |
| 2018 |
Jakob Moritz, Ander Retolaza, Alexander Westphal On uplifts by warped anti-D3-branes published pages: 1800098, ISSN: 0015-8208, DOI: 10.1002/prop.201800098 |
Fortschritte der Physik | 2020-01-24 |
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