Production of Topological Defects at the End of Inflation
نویسنده
چکیده
Hybrid inflation within supersymmetric grand unified theories, as well as inflation through brane collisions within braneworld cosmological models, lead to the formation of onedimensional defects. Observational data, mainly from the cosmic microwave background temperature anisotropies but also from the gravitational wave background, impose constraints on the free parameters of the models. I review these inflationary models and discuss the constraints from the currently available data.
منابع مشابه
!∀#∃∀%&∀∋( Blockin Blockin%∀∃) * +,% Blockin Blockin − ∋ ../ ..#∀011)+ , * +002 * +3 * 4//5 +2313 & Blockin 67+ * +1 Brane Inflation and Defect Formation
Brane inflation and the production of topological defects at the end of the inflationary phase are discussed. After a description of the inflationary setup we discuss the properties of the cosmic strings produced at the end of inflation. Specific examples of brane inflation are described: D − ¯ D inflation, D3/D7 inflation and modular inflation.
متن کاملBrane inflation and defect formation.
Brane inflation and the production of topological defects at the end of the inflationary phase are discussed. After a description of the inflationary set-up, we discuss the properties of the cosmic strings produced at the end of inflation. Specific examples of brane inflation are described, such as D-D , D3/D7 and modular inflations.
متن کاملar X iv : h ep - p h / 95 10 27 5 v 1 1 1 O ct 1 99 5 Topological Defects and Inflation
In the context of supersymmetric models, we analyze the production of topological defects at the end of inflation driven by a conjugate pair of inflaton fields which are non-singlets under the continuous symmetry group of the theory. We find that magnetic monopoles of mass on the order of 10 13 GeV can survive inflation and be present in our galaxy at an observable level. We also consider cosmi...
متن کاملChaotic Dynamics and Two-Field Inflation
We demonstrate the existence of chaos in realistic models of two-field inflation. The chaotic motion takes place after the end of inflation, when the fields are free to oscillate and their motion is only lightly damped by the expansion of the universe. We then investigate whether the presence of chaos affects the predictions of two-field models, and show that chaos enhances the production of to...
متن کاملPreheating in Supersymmetric Theories
We examine the particle production via preheating at the end of inflation in supersymmetric theories. The inflaton and matter scalars are now necessarily complex fields, and their relevant interactions are restricted by holomorphy. In general this leads to major changes both in the inflaton dynamics and in the efficiency of the preheating process. In addition, supersymmetric models generically ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008