Built on

T. Bjorkmo and M. D. Marsh, “Hyperinflation generalised: from its attractor mechanism to its tension with the ‘swampland conditions”’, JHEP
Original
1901
Earlier work this paper cites.
NASA PICO
Original
1902
Earlier work this paper cites.
T. Bjorkmo, “Rapid-Turn Inflationary Attractors”, Phys. Rev. Lett
Original
1902
Earlier work this paper cites.
A. Papageorgiou, M. Peloso, and C. Unal, “Nonlinear perturbations from axion-gauge fields dynamics during inflation”, JCAP
Original
1904
Earlier work this paper cites.
V. Aragam, S. Paban, and R. Rosati, “Multi-field Inflation in High-Slope Potentials”, JCAP
Original
1905
Earlier work this paper cites.
D. Chakraborty, R. Chiovoloni, O. Loaiza-Brito, G. Niz, and I. Zavala, “Fat inflatons, large turns and the η \eta -problem”, JCAP
Original
1908
Earlier work this paper cites.
A. Maleknejad and M. Sheikh-Jabbari, “Non-Abelian Gauge Field Inflation”, Phys. Rev. D
Original
1932
Earlier work this paper cites.
K. Freese, J. A. Frieman, and A. V. Olinto, “Natural inflation with pseudo - Nambu-Goldstone bosons”, Phys. Rev. Lett
1990
Earlier work this paper cites.
P. Candelas and X. de la Ossa, “Moduli Space of Calabi-Yau Manifolds”, Nucl. Phys
1991
Earlier work this paper cites.
M. Zaldarriaga and U. Seljak, “An all sky analysis of polarization in the microwave background”, Phys. Rev. D
1997
Earlier work this paper cites.
M. Kamionkowski, A. Kosowsky, and A. Stebbins, “Statistics of cosmic microwave background polarization”, Phys. Rev. D
1997
Earlier work this paper cites.
D. H. Lyth, “What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?”, Phys. Rev. Lett
1997
Earlier work this paper cites.
K. Becker, M. Becker, M. Haack, and J. Louis, “Supersymmetry breaking and alpha-prime corrections to flux induced potentials”, JHEP
2002
Earlier work this paper cites.
V. Balasubramanian and P. Berglund, “Stringy corrections to Kahler potentials, SUSY breaking, and the cosmological constant problem”, JHEP
2004
Earlier work this paper cites.
L. Boubekeur and D. H. Lyth, “Hilltop inflation”, JCAP
2005
Earlier work this paper cites.
O. Ozsoy, “Gravitational Waves from a Rolling Axion Monodromy”, arXiv:2005.10280 [astro-ph.CO]
Original
2005
Earlier work this paper cites.
V. Balasubramanian, P. Berglund, J. P. Conlon, and F. Quevedo, “Systematics of moduli stabilisation in Calabi-Yau flux compactifications”, JHEP
2005
Earlier work this paper cites.
J. P. Conlon, F. Quevedo, and K. Suruliz, “Large-volume flux compactifications: Moduli spectrum and D3/D7 soft supersymmetry breaking”, JHEP
2005
Earlier work this paper cites.
H. Jockers and J. Louis, “The Effective action of D7-branes in N = 1 Calabi-Yau orientifolds”, Nucl. Phys. B
2005
Earlier work this paper cites.
H. Jockers and J. Louis, “D-terms and F-terms from D7-brane fluxes”, Nucl. Phys. B
2005
Earlier work this paper cites.
J. P. Conlon and F. Quevedo, “Kahler moduli inflation”, JHEP
2006
Earlier work this paper cites.
N. Arkani-Hamed, L. Motl, A. Nicolis, and C. Vafa, “The String landscape, black holes and gravity as the weakest force”, JHEP
2007
Earlier work this paper cites.

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I. Ben-Dayan, F. G. Pedro, and A. Westphal, “Towards Natural Inflation in String Theory”, Phys. Rev. D
Original
2015
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A. Achucarro, V. Atal, and Y. Welling, “On the viability of m 2 ϕ 2 m^{2}\phi^{2} and natural inflation”, JCAP
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N. Bartolo et al
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2020

On chromonatural inflation in string theory

Holland, Jonathan, Zavala, Ivonne, Tasinato, Gianmassimo

Understand

Sourced gravitational waves in chromonatural inflation (CNI) can give rise to a chiral spectrum of tensor fluctuations that is considerably enhanced relative to the vacuum fluctuations.

If the field content of CNI acts purely as a spectator (SCNI), the inflationary sector can be consistent with current data making SCNI very appealing in view of future observations.
We investigate the prospects of embedding SCNI in string theory, in the framework of K\"ahler inflation in type IIB large volume string compactifications, with a spectator sector associated with gaugino condensation on multiply magnetised D7-branes.
We first introduce a generalised field theory framework that describes non-trivial multifield inflation coupled to gauge fields of the form generically arising in supergravity and string theory.

Built on

T. Bjorkmo and M. D. Marsh, “Hyperinflation generalised: from its attractor mechanism to its tension with the ‘swampland conditions”’, JHEP
Original
1901
Earlier work this paper cites.
NASA PICO
Original
1902
Earlier work this paper cites.
T. Bjorkmo, “Rapid-Turn Inflationary Attractors”, Phys. Rev. Lett
Original
1902
Earlier work this paper cites.
A. Papageorgiou, M. Peloso, and C. Unal, “Nonlinear perturbations from axion-gauge fields dynamics during inflation”, JCAP
Original
1904
Earlier work this paper cites.
V. Aragam, S. Paban, and R. Rosati, “Multi-field Inflation in High-Slope Potentials”, JCAP
Original
1905
Earlier work this paper cites.
D. Chakraborty, R. Chiovoloni, O. Loaiza-Brito, G. Niz, and I. Zavala, “Fat inflatons, large turns and the η \eta -problem”, JCAP
Original
1908
Earlier work this paper cites.
A. Maleknejad and M. Sheikh-Jabbari, “Non-Abelian Gauge Field Inflation”, Phys. Rev. D
Original
1932
Earlier work this paper cites.
K. Freese, J. A. Frieman, and A. V. Olinto, “Natural inflation with pseudo - Nambu-Goldstone bosons”, Phys. Rev. Lett
1990
Earlier work this paper cites.
P. Candelas and X. de la Ossa, “Moduli Space of Calabi-Yau Manifolds”, Nucl. Phys
1991
Earlier work this paper cites.
M. Zaldarriaga and U. Seljak, “An all sky analysis of polarization in the microwave background”, Phys. Rev. D
1997
Earlier work this paper cites.
M. Kamionkowski, A. Kosowsky, and A. Stebbins, “Statistics of cosmic microwave background polarization”, Phys. Rev. D
1997
Earlier work this paper cites.
D. H. Lyth, “What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?”, Phys. Rev. Lett
1997
Earlier work this paper cites.
K. Becker, M. Becker, M. Haack, and J. Louis, “Supersymmetry breaking and alpha-prime corrections to flux induced potentials”, JHEP
2002
Earlier work this paper cites.
V. Balasubramanian and P. Berglund, “Stringy corrections to Kahler potentials, SUSY breaking, and the cosmological constant problem”, JHEP
2004
Earlier work this paper cites.
L. Boubekeur and D. H. Lyth, “Hilltop inflation”, JCAP
2005
Earlier work this paper cites.
O. Ozsoy, “Gravitational Waves from a Rolling Axion Monodromy”, arXiv:2005.10280 [astro-ph.CO]
Original
2005
Earlier work this paper cites.
V. Balasubramanian, P. Berglund, J. P. Conlon, and F. Quevedo, “Systematics of moduli stabilisation in Calabi-Yau flux compactifications”, JHEP
2005
Earlier work this paper cites.
J. P. Conlon, F. Quevedo, and K. Suruliz, “Large-volume flux compactifications: Moduli spectrum and D3/D7 soft supersymmetry breaking”, JHEP
2005
Earlier work this paper cites.
H. Jockers and J. Louis, “The Effective action of D7-branes in N = 1 Calabi-Yau orientifolds”, Nucl. Phys. B
2005
Earlier work this paper cites.
H. Jockers and J. Louis, “D-terms and F-terms from D7-brane fluxes”, Nucl. Phys. B
2005
Earlier work this paper cites.
J. P. Conlon and F. Quevedo, “Kahler moduli inflation”, JHEP
2006
Earlier work this paper cites.
N. Arkani-Hamed, L. Motl, A. Nicolis, and C. Vafa, “The String landscape, black holes and gravity as the weakest force”, JHEP
2007
Earlier work this paper cites.