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5 papers · 2 filters
Super-Geometrodynamics
M. Cvetic, G. W. Gibbons, C. N. Pope
We present explicit solutions of the time-symmetric initial value constraints, expressed in terms of freely specfiable harmonic functions for examples of supergravity theories, whi…
Vacuum Polarization of STU Black Holes and their Subtracted Geometry Limit
Mirjam Cvetic, Gary W. Gibbons, Zain H. Saleem +1
We study the vacuum polarization of a massless minimally coupled scalar field at the horizon of four-charge STU black holes. We compare the results for the standard asymptotically…
Wave Equation for the Wu Black Hole
Tolga Birkandan, Mirjam Cvetič
Wu black hole is the most general solution of maximally supersymmetric gauged supergravity in D=5, containing gauge symmetry. We study the separability of the massless K…
Black Holes with Intrinsic Spin
Mirjam Cvetic, Finn Larsen
We analyze the general black hole solutions to the four dimensional STU model recently constructed by Chow and Compere. We define a dilute gas limit where the black holes can be in…
Cosmological Perturbations Through a Non-Singular Ghost-Condensate/Galileon Bounce
Lorenzo Battarra, Michael Koehn, Jean-Luc Lehners +1
We study the propagation of super-horizon cosmological perturbations in a non-singular bounce spacetime. The model we consider combines a ghost condensate with a Galileon term in o…