Towards brane-antibrane inflation in type IIA: the holographic MQCD mode
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
01/02/2012
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) We describe type IIA cosmological brane inflation scenarios based on the holographic MQCD model of Aharony et al [1]. The scenarios can be related via T-duality to the type IIB KKLMMT model [2]. They describe a probe brane configuration of p D4 branes stretching between an NS5 and NS5' branes in the holographic background of large N D4 branes. The resulting cosmological models have a Wick-rotated D4-brane metric, with transverse dimensions compactified, and a spiralling brane with flux p. In one model, the background has a small nonextremality, and the inflaton is provided by the position of a "sliding" D4-brane, and in the other, the background is supersymmetric, but with a sliding anti-D4-brane. We obtain good and generic inflationary models, though several unknowns remain, in particular about subleading corrections. The usual caveat of volume stabilization generically spoiling slow-roll still applies. |
Formato |
22 |
Identificador |
http://dx.doi.org/10.1007/JHEP02(2012)040 Journal of High Energy Physics. New York: Springer, n. 2, p. 22, 2012. 1126-6708 http://hdl.handle.net/11449/24224 10.1007/JHEP02(2012)040 WOS:000301451200040 |
Idioma(s) |
eng |
Publicador |
Springer |
Relação |
Journal of High Energy Physics |
Direitos |
closedAccess |
Palavras-Chave | #Cosmology of Theories beyond the SM #D-branes #M-Theory |
Tipo |
info:eu-repo/semantics/article |