Seminarium Teorii Względności i Grawitacji
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Cong Zhang (IFT UW)
Loop quantum gravity inspired blackhole remnant
The final fate of black holes is a fascinating topic with a lot of debates. The current work addresses this issue within the framework of loop quantum gravity. By developing a numerical method to diagonalize the Hamiltonian operator of the loop quantized model of Schwarzschild interior coupled to a massless scalar field, we compute its quantum dynamics whose the semiclassical limit is proven to be compatible with the effective one. With a further constraint to get rid of the scalar field, the physical states to describe the quantum Schwarzschild black hole is obtained. The particular interesting achievement is that the spectrum of the operator, whose classical limit is proportional to the black hole mass, takes discrete value and the corresponding ground state possesses a non-vanishing eigenvalue, which supports the existence of a stable remnant of the black hole evaporation. Google Meet meeting: https://meet.google.com/kmy-agoo-juc