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9 July 2020 to 31 December 2021
Europe/Zurich timezone

Probing extremely small-scale primordial perturbations by gravitational waves

8 Oct 2020, 10:00


Prof. Suyama Teruaki


According to the theory of inflation, the primordial perturbations existed over a wide range of length scales from meter size at the smallest scale up to at least the Hubble horizon on the largest scale. Stochastic gravitational waves have been attracting a lot of interest recently as a new powerful probe of the primordial perturbations on very small scales. In this talk, I will give a brief overview in this field and present a recent search for such gravitational waves by using LIGO O2 data and its implications.

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