Energy-conservation constraints on cosmic string loop production and distribution functions

Energy-conservation constraints on cosmic string loop production and distribution functions
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宇宙弦环产生和分布函数的能量守恒约束

DOI:
10.1103/physrevd.100.123526
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发表时间:
2019
期刊:
影响因子:
5
通讯作者:
Wachter, Jeremy M.
Wachter, Jeremy M.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Blanco-Pillado, Jose J.;Olum, Ken D.;Wachter, Jeremy M.

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宇宙弦的网络将产生引力波,这可能会被脉冲星计时或未来的干涉仪探测到。引力波信号的细节取决于宇宙弦环的分布,宇宙弦环是由长弦尺度网络的互换产生的。我们分析了能量守恒施加的限制,即流入循环的字符串总量不能超过离开长字符串的数量。我们表明,最近关于宇宙弦环产生率和分布的一些建议被这些极限排除了。因此,基于这种建议的引力波,特别是在LIGO数据分析中使用的“模型3”,是不可能被期待的。
A network of cosmic strings would lead to gravitational waves which may be detected by pulsar timing or future interferometers. The details of the gravitational wave signal depend on the distribution of cosmic string loops, which are produced by intercommutations from the scaling network of long strings. We analyze the limits imposed by energy conservation, i.e., by the fact that the total amount of string flowing into loops cannot exceed the amount leaving the long strings. We show that some recent suggestions for the cosmic string loop production rate and distribution are ruled out by these limits. As a result, gravitational waves based on such suggestions, in particular “model 3” used in LIGO data analysis, are not to be expected.
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