1997
DOI: 10.1016/s0370-2693(97)00499-1
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Hybrid inflation with quasi-canonical supergravity

Abstract: We construct a hybrid inflationary model associated with the superheavy scale M X ≃ 2 × 10 16 GeV of the minimal supersymmetric standard model which is based on the simplest superpotential for symmetry breaking and in which the inflaton potential along the inflationary trajectory is essentially provided by quasi-canonical supergravity. The resulting spectrum of adiabatic density perturbations is blue and the duration of inflation sufficient but rather limited.

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Cited by 43 publications
(40 citation statements)
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“…(3) for which the resulting potential corresponds to the one of eq. (2) with just the addition of the term βx [7]. Again we naively expect inflation to be allowed only for x ≪ 1.…”
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confidence: 98%
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“…(3) for which the resulting potential corresponds to the one of eq. (2) with just the addition of the term βx [7]. Again we naively expect inflation to be allowed only for x ≪ 1.…”
mentioning
confidence: 98%
“…Of course, one is still left with the problem of generating the necessary slope along the inflationary trajectory. One possibility is that this slope, or at least a significant part of it, is generated when global supersymmetry is promoted to local [5], [6], [7].…”
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confidence: 99%
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“…(12) with N = 1 and K 2 (|Z| 2 ) of Eq. (10) with n = 2 (or two Z-type fields each entering a K 2 with n = 1) or K 1 (|S| 2 ) with N = 2 and K 2 (|Z| 2 ) with n = 1 give β = 0 and consequently a completely flat potential.Because of the possibility of suppressing the supergravity corrections through a single parameter β we expect that the models with N = 1, 2 will lead to some novel features compared to the quasi-canonical case [7], mostly due to the anticipated extension of inflation to σ values close or even slightly larger than unity. In particular, one might hope for the possibility of predicting a detectable gravitational wave signal in the cosmic microwave background anisotropy which requires an inflaton field variation of order unity [11].…”
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confidence: 99%