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The pseudo-conformal scenario is an alternative to inflation in which the early universe is described by an approximate conformal field theory on flat, Minkowski space.
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V. A. Rubakov, “Harrison-Zeldovich spectrum from conformal invariance,” JCAP 0909
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A. R. Gover, A. Shaukat and A. Waldron, “Weyl Invariance and the Origins of Mass,” Phys. Lett. B 675
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A. R. Gover, A. Shaukat and A. Waldron, “Tractors, Mass and Weyl Invariance,” Nucl. Phys. B 812
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I. N. McArthur, “Nonlinear realizations of symmetries and unphysical Goldstone bosons,” JHEP 1011
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C. de Rham and A. J. Tolley, “DBI and the Galileon reunited,” JCAP 1005
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A. Joyce and J. Khoury, “Scale Invariance via a Phase of Slow Expansion,” Phys. Rev. D 84
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J. Khoury and G. E. J. Miller, “Towards a Cosmological Dual to Inflation,” Phys. Rev. D 84
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A. Joyce and J. Khoury, “Strong Coupling Problem with Time-Varying Sound Speed,” Phys. Rev. D 84
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J. M. Maldacena and G. L. Pimentel, “On graviton non-Gaussianities during inflation,” JHEP 1109
2011
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M. Osipov and V. Rubakov, “Scalar tilt from broken conformal invariance,” JETP Lett. 93
2011
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