361 citations · 592 across the 6 of their papers we have counts for
6 papers
Astrophysical viability of extremal black holes
Chiara Coviello, Ruth Gregory
We take a fresh look at the viability of physically realistic extremal black holes within our (non-supersymmetric) low energy physics. By incorporating prefactors and volume effect…
Primordial Black Holes and Higgs Vacuum Decay
Ruth Gregory
Phase transitions are part of everyday life, yet are also believed to be part of the history of our universe, where the nature of particle interactions change as the universe settl…
Opening up extra dimensions at ultra-large scales
Ruth Gregory, Valery A. Rubakov, Sergei M. Sibiryakov
The standard picture of viable higher-dimensional theories is that extra dimensions manifest themselves at short distances only, their effects being negligible at scales larger tha…
Smooth metrics for snapping strings
Ruth Gregory, Mark Hindmarsh
We construct two possible metrics for abelian Higgs vortices with ends on black holes. We show how the detail of the vortex fields smooths out the nodal singularities which exist i…
Black Holes with a Massive Dilaton
R. Gregory, J. A. Harvey
The modifications of dilaton black holes which result when the dilaton acquires a mass are investigated. We derive some general constraints on the number of horizons of the black h…
Quantum Fermion Hair
Ruth Gregory, Jeffrey Harvey
It is shown that the Dirac operator in the background of a magnetic %Reissner-Nordström black hole and a Euclidean vortex possesses normalizable zero modes in theories containing s…