Results 141 to 150 of about 9,369 (182)
Primordial black holes and their gravitational-wave signatures. [PDF]
Living Rev RelativBagui E +20 more
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Moduli stabilisation, vacua and cosmological inflation in type IIA superstrings compactified on rigid Calabi--Yau threefolds首都大学東京, 2018-03-25, 博士（理学）
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One Loop Analyses of Superstring Vacua on Asymmetric Orbifolds
One Loop Analyses of Superstring Vacua on Asymmetric Orbifoldsopenaire
Geometry and Quantum Symmetries of Superstring Vacua [PDF]
, 1992 We report on some recent progress which has been made in the understanding of general features of superstring compactifications. The following aspects are discussed: special geometry of the moduli space of (2,2) vacua, target-space duality symmetries, differential equations for the periods of holomorphic three-forms, and higher loop (genus) string ...
S. Ferrara
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Symmetries of cosmological superstring vacua [PDF]
Physics Letters B, 1991 Abstract The concept of discrete scale-factor-duality transformations is extended to a full, continuous O(d, d) group. The action of the group transforms “cosmological” solutions of the low-energy, string-modified Einstein equations (including non-trivial dilaton and antisymmetric tensor fields) into other solutions, thus representing the natural ...
Krzysztof A. Meissner, G. Veneziano
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Holomorphic structure of superstring vacua
Classical and Quantum Gravity, 1987 String theory as it is usually presented mathematically is a theory of parametrized strings. A physical theory however should only involve non- parametrized strings. In other words the theory should be invariant under the diffeomorphism group of the circle.
Krzysztof Pilch, Nicholas P. Warner
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Spontaneous splitting and internal isometries of superstring vacua
Journal of Mathematical Physics, 1987 Superstring vacua are normally presumed to be of the form M×K, where dim(M)=4, dim(K)=6, and where × denotes the global Riemannian product. Since, however, one would ultimately wish to understand the external/internal distinction in terms of some dynamical mechanism (‘‘spontaneous splitting’’) involving vacuum expectation values of local fields, it may
Brett McInnes
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Properties of superstring vacua from (topological) Landau-Ginzburg models
, 1998 Shing‐Tung Yau
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Quaternionic manifolds for type II superstring vacua of Calabi-Yau spaces [PDF]
Nuclear Physics B, 1990 Abstract In type II theories compactified on Calabi-Yau manifolds the moduli fields are accompanied by (Ramond-Ramond) scalar superpartners. N = 2 space-time supersymmetry requires the low-energy effective mutual interaction of these excitations be described by a quaternionic σ-model in target space.
S. Ferrara, S. Sabharwal
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Symmetries on the Space of (2, 2) Superstring Vacua and Automorphism Groups of Calabi-Yau Manifolds [PDF]
Progress of Theoretical Physics Supplement, 1990 Symmetry groups on the space of (2,2) string vacua for c = 3,6,9 are discussed in the context of orbifoldized Landau-Ginzburg theories. A general method for finding the maximal symmetry groups on the moduli space of untwisted marginal operators is presented, by studying symmetries on the resolution of isolated singularities of superpotentials ...
Amit Giveon, Dirk-Jan Smit
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