Tidal Love numbers of wormholes as black-hole mimickers
Abstract
We study the dynamical scalar tidal Love numbers of wormholes that provide viable mimickers for black holes, focusing on thin-shell Schwarzschild and Damour-Solodukhin geometries. Using a matched near- and far-zone expansion, we determine their tidal response in the low-frequency regime. The presence of a long throat introduces an additional characteristic scale and naturally separates the modes into two classes. Super-throat modes probe the global wormhole geometry and are sensitive to both asymptotic regions, whereas sub-throat modes probe only one side of the wormhole and effectively perceive the throat as a black-hole horizon. We derive the scalar tidal Love numbers analytically for both classes of modes and show that their dissipative parts exhibit distinct low-frequency behavior, reflecting whether one or both potential barriers participate in the scattering process. We further find that, as the wormhole approaches the black-hole limit, the super-throat contribution becomes progressively negligible, while the sub-throat response smoothly reduces to that of a Schwarzschild black hole. These results demonstrate that the tidal response of wormholes depends crucially on whether the perturbation probes the global structure of the throat.
Related
- Tidal Love Numbers of Thin-Shell Wormholes, de Sitter Gravastars, and Anti-de Sitter Gravastars via Full Perturbed Junction Conditions
- Axial tidal Love numbers of black holes in matter environments
- Static tidal Love numbers of Schwarzschild and non-Schwarzschild black holes in quadratic gravity
- Can wormholes have vanishing Love numbers?
- Love at the String Scale: Tidal Deformability Across the Black Hole-String Transition
BibTeX
@misc{solodukhin2026tidal,
title = {{Tidal Love numbers of wormholes as black-hole mimickers}},
author = {Sergey N Solodukhin and Vagif Tagiev},
howpublished = {HAL},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.13129},
eprint = {2609.13129},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05763175v1},
}
RIS
TY - UNPB
TI - Tidal Love numbers of wormholes as black-hole mimickers
AU - Sergey N Solodukhin
AU - Vagif Tagiev
PY - 2026
DA - 2026/09/22
PB - HAL
DO - 10.48550/arxiv.2609.13129
UR - https://hal.science/hal-05763175v1
AB - We study the dynamical scalar tidal Love numbers of wormholes that provide viable mimickers for black holes, focusing on thin-shell Schwarzschild and Damour-Solodukhin geometries. Using a matched near- and far-zone expansion, we determine their tidal response in the low-frequency regime. The presence of a long throat introduces an additional characteristic scale and naturally separates the modes into two classes. Super-throat modes probe the global wormhole geometry and are sensitive to both asymptotic regions, whereas sub-throat modes probe only one side of the wormhole and effectively perceive the throat as a black-hole horizon. We derive the scalar tidal Love numbers analytically for both classes of modes and show that their dissipative parts exhibit distinct low-frequency behavior, reflecting whether one or both potential barriers participate in the scattering process. We further find that, as the wormhole approaches the black-hole limit, the super-throat contribution becomes progressively negligible, while the sub-throat response smoothly reduces to that of a Schwarzschild black hole. These results demonstrate that the tidal response of wormholes depends crucially on whether the perturbation probes the global structure of the throat.
ER -