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We show that the hidden conformal symmetry of the Schwarzschild black hole isrealized from the AdS$_2$ sector of the AdS$_2\times S^2$, but not from theRindler spacetime which is the genuine near-horizon geometry of theSchwarzschild black hole. This implies that purely imaginary quasinormalfrequencies obtained using the hidden conformal symmetry is not suitable fordescribing the largely damped modes around the Schwarzschild black hole.

Quasinormal frequencies using the hidden conformal symmetry of the Schwarzschild black hole