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How much can gravitons be squeezed?

GGD - Gr@V Seminar
Speaker
Panagiotis Dorlis (National Technical University of Athens (NTUA))
Event date
Venue
Hybrid: Sala Sousa Pinto and Teams
Event type

Dyson, just before the first detection of Gravitational Waves (GWs) by LIGO, raised the question of whether the detection of a single graviton can be achieved with GW strain detectors. If this is possible, then it would be a direct evidence for the quantization of the gravitational field.

Quasi-integrability in classical field theories

GGD - Gr@V Seminar
Speaker
Paulo E. G. Assis (Universidade Federal de Catalão)
Event date
Venue
Hybrid: Sala Sousa Pinto and Teams
Event type

We present a general inverse scattering formalism for systems with quasi-zero curvature representations, extending the tools of integrable models to the quasi-integrable setting.

Quantum fermion superradiance in charged black holes

GGD - Gr@V Seminar
Speaker
Álvaro Álvarez-Domínguez (Universidad Complutense de Madrid & IPARCOS)
Event date
Venue
Hybrid: room 11.2.23 and Zoom
Event type
In contrast to a classical charged bosonic field, a classical charged fermionic field does not exhibit superradiant scattering when placed in the background of a static charged black hole. However, we show that a quantum version of this effect does occur.

Kobra: a Vlasov Code with AMR

GGD - Gr@V seminar
Speaker
Sebastian Konewko (Gent University)
Event date
Venue
Hybrid: Sala Sousa Pinto and Zoom
Event type

Plasmas in fusion reactors are highly prone to instabilities. Edge-localized modes (ELMs) occurring at the scrape-off layer (SOL) are instabilities that are responsible for large energy losses in the plasma core and present large potential for damage to the plasma-facing components.