Recent Researches related to GWs Ping Xi and Xiang-hua Zhai Shanghai Normal University KAGRA Collaboration meeting, July. 9, 2015 Interested Topics • New type of GW Source in massive gravity (Recent progress is made mainly in this topic) • Quantum noise reduction in GW detectors QNMs of a new black hole solution in massive gravity 1. A new black hole solution in massive gravity We obtain a new black hole solution in massive gravity as follows 2. QNMs of this new black hole Now, we consider concretely the behaviors of the space-time under scalar perturbation. The Regge-Wheeler equation is We list the results of QNMs in the following tables Obviously, this kind of black hole is stable against external perturbation.
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