14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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11 papers · 2 filters
Gauged Supergravities from Twisted Doubled Tori and Non-Geometric String Backgrounds
Gianguido Dall'Agata, Nikolaos Prezas, Henning Samtleben +1
We propose a universal geometric formulation of gauged supergravity in terms of a twisted doubled torus. We focus on string theory (M-theory) reductions with generalized Scherk-Sch…
On general flux backgrounds with localized sources
Giovanni Villadoro, Fabio Zwirner
We derive new consistency conditions for string compactifications with generic fluxes (RR, NSNS, geometrical) and localized sources (D-branes, NS-branes, KK-monopoles). The constra…
Kappa-symmetric SL(2,R) covariant D-brane actions
E. Bergshoeff, P. S. Howe, S. Kerstan +1
A superspace formulation of IIB supergravity which includes the field strengths of the duals of the usual physical one, three and five-form field strengths as well as the eleven-fo…
BRST Anomaly and Superspace Constraints of the Pure Spinor Heterotic String in a Curved Background
Osvaldo Chandia, Mario Tonin
The pure spinor heterotic string in a generic super Yang-Mills and supergravity background is considered. We determine the one-loop BRST anomaly at the cohomological level. We prov…
Kappa-symmetry for coincident D-branes
P. S. Howe, U. Lindstrom, L. Wulff
A kappa-symmetric action for coincident D-branes is presented. It is valid in the approximation that the additional fermionic variables, used to incorporate the non-abelian degrees…
Beyond Twisted Tori
Giovanni Villadoro, Fabio Zwirner
Exploiting the fact that Kaluza-Klein monopoles and the associated generalized orbifold planes are sources for geometrical fluxes, omega, we show that the standard constraint omega…
First-order flow equations for extremal black holes in very special geometry
Gabriel Lopes Cardoso, Anna Ceresole, Gianguido Dall'Agata +2
We construct interpolating solutions describing single-center static extremal non-supersymmetric black holes in four-dimensional N=2 supergravity theories with cubic prepotentials.…
SYM N=4 in light-cone gauge and the "bridge" identities
A. Bassetto, G. De Pol
The light-cone gauge allows to single out a set of ``transverse'' fields (TF), whose Green functions are free from UV divergences in SYM N=4. Green functions with external lines in…
Y-formalism and ghost in the Non-minimal Pure Spinor Formalism of Superstrings
Ichiro Oda, Mario Tonin
We present the Y-formalism for the non-minimal pure spinor quantization of superstrings. In the framework of this formalism we compute, at the quantum level, the explicit form of t…
Flow Equations for Non-BPS Extremal Black Holes
Anna Ceresole, Gianguido Dall'Agata
We exploit some common features of black hole and domain wall solutions of (super)gravity theories coupled to scalar fields and construct a class of stable extremal black holes tha…
Expansions of algebras and superalgebras and some applications
J. A. de Azcarraga, J. M. Izquierdo, M. Picon +1
After reviewing the three well-known methods to obtain Lie algebras and superalgebras from given ones, namely, contractions, deformations and extensions, we describe a fourth metho…