Asymptotically de Sitter black holes have nonzero tidal Love numbers

Source
Physical Review D
ISSN
24700010
Date Issued
2024-03-15
Author(s)
Nair, Sreejith
Chakraborty, Sumanta
DOI
Volume
109
Issue
6
Abstract
The Love numbers of compact objects quantify their tidal deformability against external perturbations. It is expected that the 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 are nonzero.
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