On axionic field ranges, loopholes and the weak gravity conjecture
Here, we clarify some aspects of the impact that the Weak Gravity Conjecture has on models of (generalized) natural inflation. In particular we address certain technical and conceptual concerns recently raised regarding the stringent constraints and conclusions found in our previous work. We also point out the difficulties faced by attempts to evade these constraints. Furthermore, these new considerations improve the understanding of the quantum gravity constraints we found and further support the conclusion that it remains challenging for axions to drive natural inflation.
 Authors:

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 Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics
 Publication Date:
 Grant/Contract Number:
 FG0295ER40896
 Type:
 Accepted Manuscript
 Journal Name:
 Journal of High Energy Physics (Online)
 Additional Journal Information:
 Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 4; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Research Org:
 Univ. of Wisconsin, Madison, WI (United States)
 Sponsoring Org:
 USDOE
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; Cosmology of Theories beyond the SM; Superstring Vacua
 OSTI Identifier:
 1327302
Brown, Jon, Cottrell, William, Shiu, Gary, and Soler, Pablo. On axionic field ranges, loopholes and the weak gravity conjecture. United States: N. p.,
Web. doi:10.1007/JHEP04(2016)017.
Brown, Jon, Cottrell, William, Shiu, Gary, & Soler, Pablo. On axionic field ranges, loopholes and the weak gravity conjecture. United States. doi:10.1007/JHEP04(2016)017.
Brown, Jon, Cottrell, William, Shiu, Gary, and Soler, Pablo. 2016.
"On axionic field ranges, loopholes and the weak gravity conjecture". United States.
doi:10.1007/JHEP04(2016)017. https://www.osti.gov/servlets/purl/1327302.
@article{osti_1327302,
title = {On axionic field ranges, loopholes and the weak gravity conjecture},
author = {Brown, Jon and Cottrell, William and Shiu, Gary and Soler, Pablo},
abstractNote = {Here, we clarify some aspects of the impact that the Weak Gravity Conjecture has on models of (generalized) natural inflation. In particular we address certain technical and conceptual concerns recently raised regarding the stringent constraints and conclusions found in our previous work. We also point out the difficulties faced by attempts to evade these constraints. Furthermore, these new considerations improve the understanding of the quantum gravity constraints we found and further support the conclusion that it remains challenging for axions to drive natural inflation.},
doi = {10.1007/JHEP04(2016)017},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2016,
place = {United States},
year = {2016},
month = {4}
}