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Stringy Origins of Cosmic Structure: The D-brane vector curvaton

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If you have a question about this talk, please contact Mustapha Amrani .

Mathematics and Applications of Branes in String and M-theory

I will discuss how the U(1) vector fields that live on the worldvolumes of D-branes in Type IIB string theory may play the role of vector curvatons and hence give rise to distinctive features in the spectrum and bispectrum of the curvature perturbation. I will first consider vector fields on D3-branes in open-string inflation, as a means of illustrating the principle. I will then discuss a D7-brane vector curvaton scenario in closed-string inflation.

This talk is part of the Isaac Newton Institute Seminar Series series.

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