非对称标量预热的精确WKB分析
The Exact WKB analysis for asymmetric scalar preheating
摘要：
利用高阶微分方程的精确WKB分析，我们分析了复杂标量场动力学粒子产生中的非对称性。该解需要四阶微分方程的Stokes现象。我们发现，不同类型的斯托克斯现象的干涉导致物质-反物质不对称。我们还展示了一个具体的例子，其中不对称性是禁止在精确计算，但虚假的不对称性出现在微扰膨胀。
英文摘要：
Using the exact WKB analysis of the higher-order differential equations, we analyze the asymmetry in dynamical particle production of a complex scalar field. The solution requires the Stokes phenomena of the fourth-order differential equation. We found that the interference of different types of the Stokes phenomena causes matter-antimatter asymmetry. We also showed a specific example where asymmetry is forbidden in the exact calculation, but a false asymmetry appears in the perturbative expansion.
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