Report
Generalised conditions for rapid-turn inflation
| العنوان: | Generalised conditions for rapid-turn inflation |
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| المؤلفون: | Wolters, Raul, Iarygina, Oksana, Achucarro, Ana |
| المصدر: | JCAP 07 (2024) 079 |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory |
| مصطلحات موضوعية: | Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology, High Energy Physics - Theory |
| الوصف: | Rapid-turn slow-roll inflationary trajectories have been shown to be an attractor in two-field models, provided the turn rate is near constant and larger than the slow-roll parameters. These trajectories can produce primordial spectra consistent with current observations on CMB scales. We present the generalized consistency condition for sustained rapid-turn inflationary trajectory with two fields, arbitrary field-space metric and potential valid for any value of the turn rate. This has to be supplemented by a second condition to ensure slow roll evolution. Both conditions together constitute a tool to identify inflationary trajectories with arbitrary values of the turning rate without having to solve the equations of motion. We present a Python package for the numerical identification of regions in field-space and parameter space that allow for rapid-turn trajectories. Comment: 19 pages, 5 figures, 3 tables |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1475-7516/2024/07/079 |
| URL الوصول: | http://arxiv.org/abs/2405.11628 |
| رقم الانضمام: | edsarx.2405.11628 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1475-7516/2024/07/079 |
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