Successful supersymmetric inflation
نویسندگان
چکیده
منابع مشابه
Successful Supersymmetric Inflation
The temperature uctuations in the cosmic microwave background observed by COBE provide strong support for an innationary phase in the early universe, below the GUT scale. We argue that a singlet eld in a hidden sector of an eeective supergravity theory yields the required innationary potential without ne tuning. Reheating occurs to a temperature low enough to avoid the gravitino problem, but hi...
متن کاملSuccessful Supersymmetric Inflation
We reconsider the problems of cosmological inflation in effective supergravity theories. A singlet field in a hidden sector is demonstrated to yield an acceptable inflationary potential, without fine tuning. In the simplest such model, the requirement of generating the microwave background anisotropy measured by COBE fixes the inflationary scale to be about 1014 GeV, implying a reheat temperatu...
متن کاملSupersymmetric Hybrid Inflation
The non-supersymmetric and supersymmetric versions of hybrid inflation are summarized. In the latter, the necessary inclination along the inflationary trajectory is provided by radiative corrections. Supersymmetric hybrid inflation (with its extensions) is an extremely ‘natural’ inflationary scenario. The reasons are that it does not require ‘tiny’ parameters, its superpotential has the most ge...
متن کاملSupersymmetric topological inflation model
We propose a topological inflation model in supergravity. In this model, the vacuum expectation value (VEV) of a scalar field takes a value much larger than the gravitational scale MG ≃ 2.4 × 10 GeV, which is large enough to cause topological inflation. On the other hand, expansions of the Kähler potential and the superpotential beyond the gravitational scale are validated by the introduction o...
متن کاملDynamical Supersymmetric Inflation
We propose a new class of inflationary models in which the scalar field potential governing inflation is generated by the same non-perturbative gauge dynamics that may lead to supersymmetry breaking. Such models satisfy constraints from cosmic microwave background measurements for natural values of the fundamental parameters in the theory. In addition, they have two particularly interesting cha...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1996
ISSN: 0550-3213
DOI: 10.1016/0550-3213(96)00013-2