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In this work, we have calculated the polar gravitational quasinormal modesfor a quantum corrected black hole model, that arises in the context of LoopQuantum Gravity, known as Self-Dual Black Hole. In this way, we have calculatedthe characteristic frequencies using the WKB approach, where we can verify astrong dependence with the Loop Quantum Gravity parameters. At the same time wecheck that the Self-Dual Black Hole is stable under polar gravitationalperturbations, we can also verify that the spectrum of the polar quasinormalmodes differs from the axial one \cite{Cruz:2015bcj}. Such a result tells usthat isospectrality is broken in the context of Self Dual Black Holes.

Polar gravitational perturbations and quasinormal modes of a loop quantum gravity black hole