Results 111 to 120 of about 657 (140)

Primordial black holes and their gravitational-wave signatures. [PDF]

open access: yesLiving Rev Relativ
Bagui E   +20 more
europepmc   +1 more source

Moduli stabilisation, vacua and cosmological inflation in type IIA superstrings compactified on rigid Calabi--Yau threefolds

open access: yesModuli 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)
openaire  

One Loop Analyses of Superstring Vacua on Asymmetric Orbifolds

open access: yesOne Loop Analyses of Superstring Vacua on Asymmetric Orbifolds
openaire  

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.
Pilch, K., Warner, N. P.
openaire   +1 more source

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
openaire   +1 more source

(2, 2) VACUA OF THE HETEROTIC SUPERSTRING COMPACTIFIED ON SU(2)3 GROUPFOLDS

International Journal of Modern Physics A, 1991
In this paper we classify the (2, 2) superstring vacua corresponding to non-linear σ-models on SU (2)3 groupfolds fermionized by 18 + 18 Majorana fermions. For the subclass of the completely bosonizable vacua, the generation number ½X is a multiple of 12 and the number of tangent-bundle deformations End(T) is a multiple of 4.
CASTELLANI, Leonardo   +3 more
openaire   +1 more source

Non-Compact Current Algebras and Heterotic Superstring Vacua

1990
It has been shown that a four dimensional finite and consistent superstring theory [1] can be constructed by combining any 2-dimensional superconformai field theory with a central charge c=9 with a superstring propagating in flat 4-dimensional Minkowski space-time.
openaire   +1 more source

Comments on classical AdS flux vacua with scale separation

Journal of High Energy Physics, 2022
Miquel Montero   +2 more
exaly  

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