December 11, 2024
Facultad de Ciencias Físicas, UCM
Europe/Madrid timezone

No black holes from light

Dec 11, 2024, 11:50 AM
10m
Aula Magna M1 (Facultad de Ciencias Físicas, UCM)

Aula Magna M1

Facultad de Ciencias Físicas, UCM

Plaza de Ciencias, 1, 28040 Madrid

Speaker

Mr Álvaro Álvarez Domínguez

Description

General Relativity theoretically allows the formation of black holes through the gravitational collapse of purely electromagnetic radiation. However, this scenario would involve electromagnetic strengths surpassing the critical Schwinger limit, resulting in the generation of electron-positron pairs. This quantum phenomenon counteracts the collapse, with the created particles scattering out of the collapsing region, carrying their energy. Here, we show that this dissipative effect alone is enough to prevent the formation of black holes from light in the non-classical regime.

Presentation materials