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Introduction to induced second-order gravitational waves †Minxi He †Abstract: This is a introductory talk about the induced second-order gravitational waves. As we know that gravitational wave (GW) astronomy is now one of the most popular topic in physics. In fact, GW is not only for astronomy but cosmology. The most famous example is the primordial GW predicted by inflation, although that is usually supposed to be detected by CMB b-mode. This talk will focus on higher frequency range of GW which could possibly detected by future interferometer GW detectors. The (non-)detection of these GW will give hints on cosmology, such as distinguishing cosmological models, and primordial black holes. This talk is based on the following papers: https://arxiv.org/abs/gr-qc/0612013 https://arxiv.org/abs/hep-th/0703290 |