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### 06.03.2019 (Wednesday)

#### When black holes collide: Probing the quantum state of black holes by the spectrum of emitted gravitational waves

Regular Seminar Ramy Brustein (Ben-Gurion University (Israel))

 at: 15:15 KCLroom K6.63 abstract: KCL TPPC Seminar Abstract: Black hole (BH) mergers can be viewed as cosmological “scattering experiments” resulting in an excited BH, which then decays to its ground state by emitting gravitational waves (GW). I will present general arguments, based on fundamental physics principles, as to why we should expect additional quantum ringdown modes to those predicted by general relativity. Then, I will discuss the spectrum of the predicted ringdown modes, the resulting emitted GW and the prospects for their detection in LIGO/VIRGO.