According to the Quantum FFF Model, Black Holes are deluting (eating) the vacuum lattice based dark energy or fluctuations as Casimir plates do. As a consequence it is assumed that travelling Casimir Cavities are the origin of the LIGO gravity waves and NOT Graviton packets.
https://www.academia.edu/5953574/Quantum_Gravity_and_Electro_Magnetic_Forces_by_Dual_Repulsive_Vacuum_Oscillation_Spectra_in_FFF-Theory