Nov 3 – 5, 2025
ETH, Zurich
Europe/Zurich timezone

Black hole in four dimensional general relativity with non-zero Love numbers.

Nov 3, 2025, 4:09 PM
2m
E51, HIT building (ETH, Zurich)

E51, HIT building

ETH, Zurich

Stefano-Franscini-Platz 5, 8093 Zürich
Lightning talk Lightning talks

Speaker

Sreejith Nair (Indian Institute of Technology Gandhinagar)

Description

Love numbers of compact objects quantify their tidal deformability against external perturbations. It is known that Love numbers of asymptotically flat black holes (BHs) in General Relativity are identically zero. We show that, quite contrary to common expectations, the tidal Love numbers of asymptotically de Sitter black holes in four dimensions are non-zero.

Authors

Sreejith Nair (Indian Institute of Technology Gandhinagar) Prof. Sudipta Sarkar (Indian Institute of Technology Gandhinagar) Prof. Sumanta Chakraborty (Indian Association for the Cultivation of Science, Kolkata, India)

Presentation materials