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We derive analytical expressions for the power spectra at the end of inflation in theories with two inflaton fields and non-canonical kinetic terms.
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Byrnes, C. T. and Wands, D., Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion , Phys.Rev. D74
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Lalak, Z. et al., Curvature and isocurvature perturbations in two-field inflation , JCAP 014
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Hu, W., Generalized Slow Roll for Non-Canonical Kinetic Terms , Phys.Rev. D84
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2010
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2010
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2012
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Sugiyama, N. S., Komatsu, E. and Futamase, T., dN formalism , Phys.Rev. D 87
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Planck Collaboration, Planck 2013 results. XXII. Constraints on inflation . 2013.[arXiv:1303.5082]
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R. N. Greenwood, D. I. Kaiser and E. I. Sfakianakis, Phys. Rev. D 87
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D. I. Kaiser, E. A. Mazenc and E. I. Sfakianakis, Phys. Rev. D 87
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D. I. Kaiser and E. I. Sfakianakis, Phys. Rev. Lett. 112
2014
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K. Schutz, E. I. Sfakianakis and D. I. Kaiser, Phys. Rev. D 89
2014
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R. Kallosh and A. Linde, JCAP 1312
2015
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