Results 1  10
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613
Negative Energy Density in CalabiYau Compactifications
, 2003
"... We show that a large class of supersymmetric compactifications, including all simply connected CalabiYau and G2 manifolds, have classical configurations with negative energy density as seen from four dimensions. In fact, the energy density can be arbitrarily negative – it is unbounded from below. N ..."
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We show that a large class of supersymmetric compactifications, including all simply connected CalabiYau and G2 manifolds, have classical configurations with negative energy density as seen from four dimensions. In fact, the energy density can be arbitrarily negative – it is unbounded from below
Dbranes and Orientifolds in Calabi–Yau Compactifications
, 2008
"... We explore the dynamics of nonsupersymmetric Dbrane configurations on CalabiYau orientifolds with fluxes. We show that supergravity Dterms capture supersymmetry breaking effects predicted by more abstract Πstability considerations. We also investigate the vacuum structure of such configurations ..."
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We explore the dynamics of nonsupersymmetric Dbrane configurations on CalabiYau orientifolds with fluxes. We show that supergravity Dterms capture supersymmetry breaking effects predicted by more abstract Πstability considerations. We also investigate the vacuum structure of such configurations
STRONG COUPLING EXPANSION OF CALABIYAU COMPACTIFICATION
, 1996
"... In a certain strong coupling limit, compactification of the E8 × E8 heterotic string on a CalabiYau manifold X can be described by an elevendimensional theory compactified on X × S1 /Z2. In this limit, the usual relations among low energy gauge couplings hold, but the usual (problematic) predictio ..."
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In a certain strong coupling limit, compactification of the E8 × E8 heterotic string on a CalabiYau manifold X can be described by an elevendimensional theory compactified on X × S1 /Z2. In this limit, the usual relations among low energy gauge couplings hold, but the usual (problematic
STRONG COUPLING EXPANSION OF CALABIYAU COMPACTIFICATION
, 1996
"... In a certain strong coupling limit, compactification of the E8 × E8 heterotic string on a CalabiYau manifold X can be described by an elevendimensional theory compactified on X × S1 /Z2. In this limit, the usual relations among low energy gauge couplings hold, but the usual (problematic) predictio ..."
Abstract
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In a certain strong coupling limit, compactification of the E8 × E8 heterotic string on a CalabiYau manifold X can be described by an elevendimensional theory compactified on X × S1 /Z2. In this limit, the usual relations among low energy gauge couplings hold, but the usual (problematic
Mtheory cosmologies from singular CalabiYau compactifications
 JCAP 0402 (2004) 012 [arXiv:hepth/0310174
"... We study fivedimensional Kasner cosmologies in a timedependent CalabiYau compactification of Mtheory undergoing a flop transition. The dynamics of the additional states, which become massless at the transition point and give rise to a scalar potential, are taken into account using a recently con ..."
Abstract

Cited by 13 (2 self)
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We study fivedimensional Kasner cosmologies in a timedependent CalabiYau compactification of Mtheory undergoing a flop transition. The dynamics of the additional states, which become massless at the transition point and give rise to a scalar potential, are taken into account using a recently
FTUAM 96/29 An analysis of soft terms in CalabiYau compactifications ∗
, 1996
"... We perform an analysis of the soft supersymmetrybreaking terms arising in CalabiYau compactifications. The sigmamodel contribution and the instanton correction to the Kähler potential are included in the computation. The existence of offdiagonal moduli and matter metrics gives rise to specific f ..."
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We perform an analysis of the soft supersymmetrybreaking terms arising in CalabiYau compactifications. The sigmamodel contribution and the instanton correction to the Kähler potential are included in the computation. The existence of offdiagonal moduli and matter metrics gives rise to specific
Topological Transitions and Enhançonlike Geometries in CalabiYau Compactifications of MTheory
, 2002
"... Abstract: We study the impact of topological phase transitions of the internal CalabiYau threefold on the spacetime geometry of fivedimensional extremal black holes and black strings. For flop transitions and SU(2) gauge symmetry enhancement we show that solutions can always be continued and that ..."
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Cited by 1 (1 self)
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Abstract: We study the impact of topological phase transitions of the internal CalabiYau threefold on the spacetime geometry of fivedimensional extremal black holes and black strings. For flop transitions and SU(2) gauge symmetry enhancement we show that solutions can always be continued
Moduli stabilization in type II CalabiYau compactifications at finite temperature
, 1111
"... We consider the type II superstring compactified on CalabiYau threefolds, at finite temperature. The latter is implemented at the string level by a free action on the Euclidean time circle. We show that all Kähler and complex structure moduli involved in the gauge theories geometrically engineere ..."
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Cited by 2 (2 self)
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We consider the type II superstring compactified on CalabiYau threefolds, at finite temperature. The latter is implemented at the string level by a free action on the Euclidean time circle. We show that all Kähler and complex structure moduli involved in the gauge theories geometrically
Results 1  10
of
613