标题： 关于阿贝尔-希格斯弦网络的演化 显示英文标题

标题： On the evolution of abelian-Higgs string networks

摘要： 我们研究了在数值模拟中阿贝尔-希格斯弦网络的演化。 这些与一种修改后的速度依赖单尺度模型进行了比较，该模型用于宇宙弦网络的演化。 这包括了环产生、大质量辐射和摩擦对能量损失过程的贡献，这些是实现标度演化所必需的。 我们发现模拟中的环分布统计结果与网络的长时间标度一致，表明环产生占主导地位。 对于振荡正弦扰动，我们还证明了进入大质量辐射的能量随波长的衰减非常显著。 将这些观察结果综合起来并进行外推，我们认为没有足够的证据来反对标准的弦网络演化图景，而支持一种直接大质量辐射是主要衰变机制的假设，这一假设最近引起了广泛关注。 显示英文摘要

摘要： We study the evolution of abelian-Higgs string networks in numerical simulations. These are compared against a modified velocity-dependent one scale model for cosmic string network evolution. This incorporates the contributions of loop production, massive radiation and friction to the energy loss processes that are required for scaling evolution. We find that the loop distribution statistics in the simulations are consistent with the long-time scaling of the network being dominated by loop production. For an oscillating sinusoidal perturbation, we also demonstrate that the power emitted into massive radiation decays strongly with wavelength. Putting these observations together and extrapolating, we believe there is insufficient evidence to reject the the standard picture of string network evolution in favour of one where direct massive radiation is the dominant decay mechanism, a proposal which has attracted much recent interest.