http://arxiv.org/abs/2203.04497
Using the exact WKB analysis of the higher-order differential equation, we analyze the mechanism of asymmetric preheating of a complex scalar field. The solution requires the Stokes phenomena of the fourth-order differential equation. We have identified the Stokes phenomena, which are crucial for the matter-antimatter asymmetry. The new Stokes lines and the virtual turning points, which are developed to analyze the Stokes phenomena of the higher-order differential equations, are crucial for global consistency but do not introduce a new effect in this model.
S. Enomoto and T. Matsuda
Thu, 10 Mar 22
25/60
Comments: 9 pages, 3 fugures
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