论文标题

非最低通货膨胀的单孔,弦和重力波

Monopoles, Strings and Gravitational Waves in Non-minimal Inflation

论文作者

Maji, Rinku, Shafi, Qaisar

论文摘要

我们讨论$(10)$ grand unification如何观察到拓扑稳定的中间质量的可观察数量密度($ \ sim 10^{14} $ gev)单孔幸存于Coleman-Weinberg的潜在潜力和非限量耦合驱动的Efferaton Fielt to Gravity的通货膨胀。标量光谱索引$ n_s $与当前的观察值非常一致,张量比$ r \ r \ gtrsim 0.003 $。该模型还预测了中间尺度拓扑稳定的宇宙字符串的存在,其引力波谱反映了相关的对称性破裂所经历的宇宙通胀量。这些原始单极的发现和弦的随机重力波背景将为早期宇宙中的对称破坏模式提供重要的新见解。

We discuss how in $SO(10)$ grand unification an observable number density of topologically stable intermediate mass ( $\sim 10^{14}$ GeV) monopoles survive inflation driven by a Coleman-Weinberg potential and non-minimal coupling of the inflaton field to gravity. The scalar spectral index $n_s$ is in excellent agreement with the current observations, and the tensor to scalar ratio $r\gtrsim 0.003$. The model also predicts the presence of intermediate scale topologically stable cosmic strings, and their gravitational wave spectrum reflects the amount of cosmic inflation experienced by the associated symmetry breaking. The discovery of these primordial monopoles and the stochastic gravitational wave background from the strings would provide important new insights regarding the symmetry breaking patterns in the early universe.

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