130 citations · 422 across the 7 of their papers we have counts for
7 papers
Photon Spheres and Sonic Horizons in Black Holes from Supergravity and Other Theories
M. Cvetic, G. W. Gibbons, C. N. Pope
We study closed photon orbits in spherically-symmetric static solutions of supergravity theories, a Horndeski theory, and a theory of quintessence. These orbits lie in what we shal…
Compactifications of Deformed Conifolds, Branes and the Geometry of Qubits
M. Cvetic, G. W. Gibbons, C. N. Pope
We present three families of exact, cohomogeneity-one Einstein metrics in dimensions, which are generalizations of the Stenzel construction of Ricci-flat metrics to those…
Not Conformally-Einstein Metrics in Conformal Gravity
Hai-Shan Liu, H. Lu, C. N. Pope +1
The equations of motion of four-dimensional conformal gravity, whose Lagrangian is the square of the Weyl tensor, require that the Bach tensor $E_{μν}= (\nabla^ρ\nabla^σ+ \ft12 R^{…
New Complete Non-compact Spin(7) Manifolds
M. Cvetic, G. W. Gibbons, H. Lu +1
We construct new explicit metrics on complete non-compact Riemannian 8-manifolds with holonomy Spin(7). One manifold, which we denote by A_8, is topologically R^8 and another, whic…
Hyper-Kahler Calabi Metrics, L^2 Harmonic Forms, Resolved M2-branes, and AdS_4/CFT_3 Correspondence
M. Cvetic, G. W. Gibbons, H. Lu +1
We obtain a simple explicit expression for the hyper-Kahler Calabi metric on the co-tangent bundle of CP^{n+1}, for all n, in which it is constructed as a metric of cohomogeneity o…
Supersymmetric Non-singular Fractional D2-branes and NS-NS 2-branes
M. Cvetic, G. W. Gibbons, H. Lu +1
We obtain regular deformed D2-brane solutions with fractional D2-branes arising as wrapped D4-branes. The space transverse to the D2-brane is a complete Ricci-flat 7-manifold of G_…
Closed-form Absorption Probability of Certain D=5 and D=4 Black Holes and Leading-Order Cross-Section of Generic Extremal p-branes
M. Cvetic, H. Lu, C. N. Pope +1
We obtain the closed-form absorption probabilities for minimally-coupled massless scalars propagating in the background of D=5 single-charge and D=4 two-charge black holes. These a…