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hep-ph2004
Holes in the ghost condensate
D. Krotov, C. Rebbi, V. Rubakov +1
In a recently proposed model of ``ghost condensation'', spatially homogeneous states may mix, via tunneling, with inhomogeneous states which are somewhat similar to bubbles in the…
hep-th2004
4d-Flat Compactifications With Brane Vorticities
S. Randjbar-Daemi, V. Rubakov
We present solutions in six-dimensional gravity coupled to a sigma model, in the presence of three-brane sources. The space transverse to the branes is a compact non-singular manif…