TY - JOUR
T1 - Dilaton dynamics in (A) dS5×S5
AU - Uzawa, Kunihito
AU - Maeda, Kei Ichi
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - We investigate a stabilization of extra dimensions in a ten-dimensional Kaluza-Klein theory, and type IIB supergravity. We assume (A)dS 5×S5 compactification, and calculate quantum effects to find an effective potential for the radius of internal space. The effective potential has a minimum, and if the universe is created on the top of the potential hill, the universe evolves from dS5 to AdS5 after exponential expansion. The internal space S5 stays small and its radius becomes constant. Our model in type IIB supergravity contains the 4-form gauge field with a classical vacuum expectation value, which is the role of a ten-dimensional cosmological constant. If the universe evolves into anti-de Sitter, the five-dimensional Randall-Sundrum setup with a stabilized dilaton is obtained from the type IIB supergravity model.
AB - We investigate a stabilization of extra dimensions in a ten-dimensional Kaluza-Klein theory, and type IIB supergravity. We assume (A)dS 5×S5 compactification, and calculate quantum effects to find an effective potential for the radius of internal space. The effective potential has a minimum, and if the universe is created on the top of the potential hill, the universe evolves from dS5 to AdS5 after exponential expansion. The internal space S5 stays small and its radius becomes constant. Our model in type IIB supergravity contains the 4-form gauge field with a classical vacuum expectation value, which is the role of a ten-dimensional cosmological constant. If the universe evolves into anti-de Sitter, the five-dimensional Randall-Sundrum setup with a stabilized dilaton is obtained from the type IIB supergravity model.
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U2 - 10.1103/PhysRevD.68.084017
DO - 10.1103/PhysRevD.68.084017
M3 - Article
AN - SCOPUS:33750381346
VL - 68
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 0556-2821
IS - 8
M1 - 084017
ER -