Aldo Deandrea

Quasinormal frequencies in Reissner-Nordstr\"om de Sitter black holes: constraints from space-time and scalar field parameters

Anna Chrysostomou, Alan S. Cornell, Aldo Deandrea, Seong Chan Park

International audience

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A note on Strong Cosmic Censorship and its violation in Reissner-Nordström de Sitter black hole space-times

Anna Chrysostomou, Alan S. Cornell, Aldo Deandrea, Seong Chan Park

Penrose's Strong Cosmic Censorship conjecture safeguards determinism in General Relativity. Within the initial value approach to General Relativity, proof of Strong Cosmic Censorship preservation is predicated on the unique evolution of the metric. For the Kerr-Newman family of black hole solutions, this …

Probing cosmic censorship in Reissner-Nordström de Sitter black holes

Anna Chrysostomou, Alan S. Cornell, Aldo Deandrea, Hajar Noshad et autres

From black hole quasinormal frequencies (QNFs), we can extract characterising information about their perturbed source. For the Reissner-Nordström de Sitter (RNdS) black hole, the damping of the QNF spectrum relays information about whether these fields evolve past the Cauchy horizon, in violation …

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Reissner-Nordström black holes in de Sitter space-time: bounds with quasinormal frequencies

Anna Chrysostomou, Alan S. Cornell, Aldo Deandrea, Hajar Noshad et autres

Rich physics can be divined from charged black holes subjected to extremal conditions. When applied in conjunction with principles like Weak Cosmic Censorship, this naturally leads to constraints on the mass and charge of the black hole. However, more nuanced principles such …

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Top partners and scalar dark matter: A nonminimal reappraisal

Alan S. Cornell, Aldo Deandrea, Thomas Flacke, Benjamin Fuks et autres

A large set of models beyond the Standard Model of particle physics suggest that the top quark plays a special role in fundamental interactions. At the same time some of these models predict that a particle responsible for dark matter is present …

Afrique du Sud, fr (code pays fourni par la source)

The CKM phases alpha and gamma

Aldo Deandrea