@article{34d1a96c2fff4a0098d9e3bb5f4435f7,
title = "Non-Abelian gauge preheating",
abstract = "We study preheating in models where a scalar inflaton is directly coupled to a non-Abelian SU(2) gauge field. In particular, we examine m2φ2 inflation with a conformal, dilatonlike coupling to the non-Abelian sector. We describe a numerical scheme that combines lattice gauge theory with standard finite difference methods applied to the scalar field. We show that a significant tachyonic instability allows for efficient preheating, which is parametrically suppressed by increasing the non-Abelian self-coupling. Additionally, we comment on the technical implementation of the evolution scheme and setting initial conditions.",
author = "Peter Adshead and Giblin, {John T.} and Weiner, {Zachary J.}",
note = "We thank Mustafa Amin, Kaloian Lozanov, and Scott Watson for useful conversations. The work of P.\u2009A. was supported in part by a NASA Astrophysics Theory Grant No.\u00A0NNX17AG48G. J.\u2009T.\u2009G. is supported by the National Science Foundation, Grant No.\u00A0PHY-1414479. Z.\u2009J.\u2009W. is supported in part by the United States Department of Energy Computational Science Graduate Fellowship, provided under Grant No.\u00A0DE-FG02-97ER25308. This work was performed in part at Aspen Center for Physics, which is supported by National Science Foundation Grant No.\u00A0PHY-1607611. We acknowledge NASA, the National Science Foundation, and the Kenyon College Department of Physics for providing the hardware used to carry out these simulations. APPENDIX A: The work of P.A. was supported in part by a NASA Astrophysics Theory Grant No. NNX17AG48G. J.T.G. is supported by the National Science Foundation, Grant No. PHY-1414479. Z.J.W. is supported in part by the United States Department of Energy Computational Science Graduate Fellowship, provided under Grant No. DE-FG02-97ER25308. This work was performed in part at Aspen Center for Physics, which is supported by National Science Foundation Grant No. PHY-1607611. We acknowledge NASA, the National Science Foundation, and the Kenyon College Department of Physics for providing the hardware used to carry out these simulations.",
year = "2017",
month = dec,
day = "15",
doi = "10.1103/PhysRevD.96.123512",
language = "English (US)",
volume = "96",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "12",
}