TY - GEN

T1 - Warped de sitter solutions in the scalar-tensor theory

AU - Flachi, Antonino

AU - Minamitsuji, Masato

AU - Uzawa, Kunihito

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We consider a class of higher dimensional theories consisting of D-dimensional gravity coupled to a scalar dilaton and a form field propagating over a warped higher dimensional spacetime. In the simplest set-up, the models are characterized by two moduli: one related to the volume of the internal space, the other to the modulus of the warp factor. While the volume-modulus can be fixed by appropriately tuning the gauge field strength, curvature of the internal space, and cosmological constant, the same mechanism cannot work for the warp modulus. Here, we will present a stabilizing mechanism for the warp modulus and its mass in terms of quantum fluctuations from both moduli. We will show that, while quantum effects from the modulus associated to the warp modulus can only provide a stabilization mechanism of the mass scale in a restricted region of the parameter space, quantum effects from the volume modulus offer an efficient mechanism of stabilization.

AB - We consider a class of higher dimensional theories consisting of D-dimensional gravity coupled to a scalar dilaton and a form field propagating over a warped higher dimensional spacetime. In the simplest set-up, the models are characterized by two moduli: one related to the volume of the internal space, the other to the modulus of the warp factor. While the volume-modulus can be fixed by appropriately tuning the gauge field strength, curvature of the internal space, and cosmological constant, the same mechanism cannot work for the warp modulus. Here, we will present a stabilizing mechanism for the warp modulus and its mass in terms of quantum fluctuations from both moduli. We will show that, while quantum effects from the modulus associated to the warp modulus can only provide a stabilization mechanism of the mass scale in a restricted region of the parameter space, quantum effects from the volume modulus offer an efficient mechanism of stabilization.

KW - Higher-dimensional gravity

KW - Moduli stabilization

UR - http://www.scopus.com/inward/record.url?scp=85045391327&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045391327&partnerID=8YFLogxK

U2 - 10.1142/9789814623995_0086

DO - 10.1142/9789814623995_0086

M3 - Conference contribution

AN - SCOPUS:85045391327

SN - 9789814612142

T3 - The 13th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proceedings of the MG13 Meeting on General Relativity, 2012

SP - 1077

EP - 1079

BT - On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories

A2 - Rosquist, Kjell

A2 - Jantzen, Robert T.

A2 - Ruffini, Remo

A2 - Ruffini, Remo

PB - World Scientific

T2 - 13th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Gravitation, and Relativistic Field Theories, MG13 2012

Y2 - 1 July 2015 through 7 July 2015

ER -