Z
Zachary J. Weiner
Researcher at University of Illinois at Urbana–Champaign
Publications - 24
Citations - 665
Zachary J. Weiner is an academic researcher from University of Illinois at Urbana–Champaign. The author has contributed to research in topics: Gravitational wave & Inflaton. The author has an hindex of 11, co-authored 20 publications receiving 381 citations. Previous affiliations of Zachary J. Weiner include University of Washington & Kenyon College.
Papers
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Gravitational waves from gauge preheating
TL;DR: In this paper, the authors consider both scalar and pseudoscalar inflaton models coupled directly to Abelian gauge fields via either a dilatonic coupling to the gauge-field kinetic term or an axial coupling to a Chern-Simons term.
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Gravitational waves from asymmetric oscillon dynamics
Mustafa A. Amin,Jonathan Braden,Edmund J. Copeland,John T. Giblin,John T. Giblin,Christian Solorio,Zachary J. Weiner,Shuang-Yong Zhou +7 more
TL;DR: In this article, a convergence study using graphics processing unit (GPU)-accelerated lattice simulations was conducted to show that numerical errors accumulated with time are significant in low-resolution scenarios, or in scenarios where the run-time causes the resolution to drop below the relevant scales in the problem.
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Constraining axion inflation with gravitational waves from preheating
Peter Adshead,John T. Giblin,John T. Giblin,Mauro Pieroni,Mauro Pieroni,Mauro Pieroni,Zachary J. Weiner +6 more
TL;DR: In this paper, the authors studied the effect of preheating into Abelian gauge fields on the amount of relativistic degrees of freedom in the early universe, and showed that the efficiency of the preheated field is correlated with the tensor-to-scalar ratio.
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Constraining axion inflation with gravitational waves across 29 decades in frequency
Peter Adshead,John T. Giblin,John T. Giblin,Mauro Pieroni,Mauro Pieroni,Mauro Pieroni,Zachary J. Weiner +6 more
TL;DR: In this paper, it was shown that the tensor-to-scalar ratio of the inflaton's possible axial coupling to Abelian gauge fields is correlated with the number of relativistic degrees of freedom.
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Non-Gaussianity and the induced gravitational wave background
TL;DR: In this paper, a detailed study of the imprint of primordial non-Gaussianity on these induced gravitational waves was performed, emphasizing the role of disconnected and connected components of the primoridal trispectrum.