Radion Physics, Stability and Cosmological issues

Journal Article · Mon Jul 12 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3473881· OSTI ID:21410573

Perez-Lorenzana, Abdel ^[1]; Santos, Eli ^[2]

---

1. Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del I.P.N. Apdo. Post. 14-740, 07000, Mexico, D.F. (Mexico)
2. Centro de Estudios en Fisica y Matematicas Basicas y Aplicadas, UNACH, 4a Oriente Norte 1428, C.P. 29000 Tuxtla Gutierrez, Chiapas (Mexico)

Moduli fields are a known ingredient of models that involve extra compact dimensions, as the Kaluza-Klein theories, String theory, and models with compact extra dimensions. They are scalar fields that emerge when the configuration of the compact space is perturbed. The radion is a particular example of this type of fields, which is associated to the variations of the total volume of compact space. Radions usually couple to all other fields, affecting the definition of coupling constants and gravity strength. They also modify gravitational potentials in a way that may be tested in table top experiments. Usually, these fields are run away modes which manifest the difficulties to stabilize the shape of the compact manifold of extra space. This is feature that can be a threat for cosmology on the early Universe. Here we provide a brief discussion of these general aspects of the radion physics.

• OSTI ID: 21410573
• Journal Information: AIP Conference Proceedings, Vol. 1256, Issue 1; Conference: 8. Mexican school on gravitation and mathematical physics, Playa del Carmen, Quintana Roo (Mexico), 6-12 Dec 2009; Other Information: DOI: 10.1063/1.3473881; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
COMPUTERIZED SIMULATION
CONFIGURATION
COSMOLOGY
COUPLING CONSTANTS
GRAVITATION
KALUZA-KLEIN THEORY
SCALAR FIELDS
SPACE
STABILITY
STRING MODELS
STRING THEORY
UNIVERSE
COMPOSITE MODELS
EXTENDED PARTICLE MODEL
FIELD THEORIES
MATHEMATICAL MODELS
M-THEORY
PARTICLE MODELS
QUARK MODEL
SIMULATION
UNIFIED-FIELD THEORIES