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hep-ph2026
Dissipative Losses In Black Hole-Induced Vacuum Decay
Michael Geller, Ofri Telem
We address the long-standing puzzle of false vacuum decay catalyzed by black holes. Naively, small black holes with large Hawking temperatures can generate highly-boosted true vacu…
hep-ph2026★ 2 cited
Ultralight Dilatonic Dark Matter
Abhishek Banerjee, Csaba Csáki, Michael Geller +2
The dilaton, a pseudo-Nambu-Goldstone boson (pNGB) of broken scale invariance, is an appealing ultralight dark matter (DM) candidate. Its mass is protected by conformal invariance…
hep-ph2025
Natural Ultralight Dark Matter: The Quadratic Twin
Cédric Delaunay, Michael Geller, Zamir Heller-Algazi +2
Scalar ultralight dark matter (ULDM) is uniquely accessible to tabletop experiments such as clocks and interferometers, and its search has been the focus of a vast experimental eff…