Report
Inflation with Massive Spin-2 Ghosts
| العنوان: | Inflation with Massive Spin-2 Ghosts |
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| المؤلفون: | Kubo, Jisuke, Kuntz, Jeffrey, Rezacek, Jonas, Saake, Philipp |
| سنة النشر: | 2022 |
| 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: | We consider a generic model of quadratic gravity coupled to a single scalar and investigate the effects of gravitational degrees of freedom on inflationary parameters. We find that quantum corrections arising from the massive spin-2 ghost generate significant contributions to the effective inflationary potential and allow for a realization of the spontaneous breakdown of global scale invariance without the need for additional scalar fields. We compute inflationary parameters, compare the resulting predictions to well-known inflationary models, and find that they fit well within the Planck and BICEP/Keck collaboration's constraints on inflation. Comment: 19 pages, 1 figure, v2 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1475-7516/2022/11/049 |
| URL الوصول: | http://arxiv.org/abs/2207.14329 |
| رقم الانضمام: | edsarx.2207.14329 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1475-7516/2022/11/049 |
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