由瞬态涨落的手征涡旋效应产生物质-反物质不对称和超磁场
The generation of matter-antimatter asymmetries and hypermagnetic fields by the chiral vortical effect of transient fluctuations
摘要：
研究了在$100\mbox{GeV} \le T\le 10\mbox{TeV}$温度范围内，手征涡效应对早期宇宙对称相超磁场的产生和演化以及物质-反物质不对称性的贡献.我们最重要的结果是，由于手征涡效应，等离子体中涡度场和物质自由度温度的小重叠瞬态波动可以导致强超磁场和物质-反物质不对称的产生，所有这些都从零初始值开始。我们表明，无论是涡度或温度波动幅度的增加，还是其宽度的减小，都会导致更强的超磁场的产生，从而导致更大的物质-反物质不对称性。我们有一个有趣的结果，波动的涡量场比时间上恒定的涡量场更有生产力，数量级很多。
英文摘要：
We study the contribution of temperature-dependent chiral vortical effect to the generation and evolution of the hypermagnetic fields and the matter-antimatter asymmetries, in the symmetric phase of the early Universe, in the temperature range $100\mbox{GeV} \le T\le 10\mbox{TeV}$. Our most important result is that, due to the chiral vortical effect, small overlapping transient fluctuations in the vorticity field in the plasma and temperature of matter degrees of freedom can lead to the generation of strong hypermagnetic fields and matter-antimatter asymmetries, all starting from zero initial values. We show that, either an increase in the amplitudes of the fluctuations of vorticity or temperature, or a decrease in their widths, leads to the production of stronger hypermagnetic fields, and therefore, larger matter-antimatter asymmetries. We have the interesting result that fluctuating vorticity fields are more productive, by many orders of magnitude, as compared to vorticities that are constant in time.
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