论文标题
Chern-Simons重力的通货膨胀期间原始重力波的共振不稳定
Resonance instability of primordial gravitational waves during inflation in Chern-Simons gravity
论文作者
论文摘要
我们研究了重力Chern-Simons项与充气量的周期性功能的轴心通货膨胀。我们发现，Chern-Simons耦合以不同的方式扩大具有不同极化的张量扰动。根据模型参数，共振放大导致引力波能量范围的平均侵略峰或板平台，而红外区域的急剧截止构成了与Einstein Grattity Mattal Fields产生的随机重力波背景相同的特征。
We investigate axion inflation where the gravitational Chern-Simons term is coupled to a periodic function of the inflaton. We find that tensor perturbations with different polarizations are amplified in different ways by the Chern-Simons coupling. Depending on the model parameters, the resonance amplification results in a parity-violating peak or a board plateau in the energy spectrum of gravitational waves, and the sharp cutoff in the infrared region constitutes a characteristic distinguishable from stochastic gravitational wave backgrounds produced by matter fields in Einstein gravity.
