Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Cline, J. M."'
Publikováno v:
JHEP 0903:058,2009
We study the motion of a D3 brane moving within a Type IIB string vacuum compactified to 4D on K3 x T_2/Z_2 in the presence of D7 and O7 planes. We work within the effective 4D supergravity describing how the mobile D3 interacts with the lightest bul
Externí odkaz:
http://arxiv.org/abs/0811.1503
Autor:
Barnaby, N., Cline, J. M.
Publikováno v:
JCAP 0707:017,2007
We study the possibility of obtaining large nongaussian signatures in the Cosmic Microwave Background in a general class of single-field nonlocal hill-top inflation models. We estimate the nonlinearity parameter f_{NL} which characterizes nongaussian
Externí odkaz:
http://arxiv.org/abs/0704.3426
Autor:
Blanco-Pillado, J. J., Burgess, C. P., Cline, J. M., Escoda, C., Gomez-Reino, M., Kallosh, R., Linde, A., Quevedo, F.
Publikováno v:
JHEP 0609:002,2006
We present a new version of our racetrack inflation scenario which, unlike our original proposal, is based on an explicit compactification of type IIB string theory: the Calabi-Yau manifold P^4_[1,1,1,6,9]. The axion-dilaton and all complex structure
Externí odkaz:
http://arxiv.org/abs/hep-th/0603129
Publikováno v:
JCAP0504:007,2005
We examine how reheating occurs after brane-antibrane inflation in warped geometries, such as those which have recently been considered for Type IIB string vacua. We adopt the standard picture that the energy released by brane annihilation is dominan
Externí odkaz:
http://arxiv.org/abs/hep-th/0412040
Autor:
Berndsen, A. J., Cline, J. M.
Publikováno v:
Int.J.Mod.Phys. A19 (2004) 5311-5316
Brane Gas Cosmology is an M-theory motivated attempt to reconcile aspects of the standard cosmology based on Einstein's theory of general relativity. Dilaton gravity, when incorporating winding p-brane states, has verified the Brandenberger--Vafa mec
Externí odkaz:
http://arxiv.org/abs/hep-th/0408185
Autor:
Blanco-Pillado, J. J., Burgess, C. P., Cline, J. M., Escoda, C., Gomez-Reino, M., Kallosh, R., Linde, A., Quevedo, F.
Publikováno v:
JHEP 0411:063,2004
We develop a model of eternal topological inflation using a racetrack potential within the context of type IIB string theory with KKLT volume stabilization. The inflaton field is the imaginary part of the K\"ahler structure modulus, which is an axion
Externí odkaz:
http://arxiv.org/abs/hep-th/0406230
Publikováno v:
JHEP0409:033,2004
We find successful models of D-brane/anti-brane inflation within a string context. We work within the GKP-KKLT class of type IIB string vacua for which many moduli are stabilized through fluxes, as recently modified to include `realistic' orbifold se
Externí odkaz:
http://arxiv.org/abs/hep-th/0403119
Autor:
Aghababaie, Y., Burgess, C. P., Cline, J. M., Firouzjahi, H., Parameswaran, S. L., Quevedo, F., Tasinato, G., Zavala, I.
Publikováno v:
JHEP 0309:037,2003
We present warped compactification solutions of six-dimensional supergravity, which are generalizations of the Randall-Sundrum warped brane world to codimension two and to a supersymmetric context. In these solutions the dilaton varies over the extra
Externí odkaz:
http://arxiv.org/abs/hep-th/0308064
Autor:
Cline, J. M.
Publikováno v:
Pramana62:749-752,2004
We investigate the possibility that fields coupled to the inflaton can influence the primordial spectrum of density perturbations through their coherent motion. For example, the second field in hybrid inflation might be oscillating at the beginning o
Externí odkaz:
http://arxiv.org/abs/astro-ph/0303407
Publikováno v:
JHEP 0302:048,2003
It has been proposed that the successful inflationary description of density perturbations on cosmological scales is sensitive to the details of physics at extremely high (trans-Planckian) energies. We test this proposal by examining how inflationary
Externí odkaz:
http://arxiv.org/abs/hep-th/0210233