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39 papers · 2 filters
Solitonic Brane World with Completely Localized (Super)Gravity
Alberto Iglesias, Zurab Kakushadze
We construct a solitonic 3-brane solution in the 5-dimensional Einstein-Hilbert-Gauss-Bonnet theory. This solitonic brane is delta-function like, and has the property that gravity…
No van Dam-Veltman-Zakharov Discontinuity for Supergravity in AdS Space
P. A. Grassi, P. van Nieuwenhuizen
Adding explicit mass terms for the spin 2 and spin 3/2 field of N=1 anti-de Sitter supergravity, the limit M --> 0 for these mass terms is smooth: there is no van Dam-Veltman-Zakha…
Time-like Extra Dimensions without Tachyons or Ghosts
Alberto Iglesias, Zurab Kakushadze
Some time ago Dvali, Gabadadze and Senjanovic (hep-ph/9910207) discussed brane world scenarios with time-like extra dimensions. In this paper we construct a solitonic 3-brane solut…
T-duality of the Green-Schwarz superstring
Bogdan Kulik, Radu Roiban
We study T-duality in the Green-Schwarz formalism to all orders in superspace coordinates. We find two analogs of Buscher rules for the supervielbein and clarify their meaning from…
Gravitational Higgs Mechanism
Zurab Kakushadze, Peter Langfelder
We discuss the gravitational Higgs mechanism in domain wall background solutions that arise in the theory of 5-dimensional Einstein-Hilbert gravity coupled to a scalar field with a…
Mode regularization of the susy sphaleron and kink: zero modes and discrete gauge symmetry
Alfred Scharff Goldhaber, Andrei Litvintsev, Peter van Nieuwenhuizen
To obtain the one-loop corrections to the mass of a kink by mode regularization, one may take one-half the result for the mass of a widely separated kink-antikink (or sphaleron) sy…