تقرير
Boltzmann hierarchy for the cosmic microwave background at second order including photon polarization
| العنوان: | Boltzmann hierarchy for the cosmic microwave background at second order including photon polarization |
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| المؤلفون: | Beneke, M., Fidler, C. |
| المصدر: | Phys.Rev.D82:063509,2010 |
| سنة النشر: | 2010 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology |
| الوصف: | Non-gaussianity and B-mode polarization are particularly interesting features of the cosmic microwave background, as -- at least in the standard model of cosmology -- their only sources to first order in cosmological perturbation theory are primordial, possibly generated during inflation. If the primordial sources are small, the question arises how large is the non-gaussianity and B-mode background induced in second-order from the initially gaussian and scalar perturbations. In this paper we derive the Boltzmann hierarchy for the microwave background photon phase-space distributions at second order in cosmological perturbation theory including the complete polarization information, providing the basis for further numerical studies. As an aside we note that the second-order collision term contains new sources of B-mode polarization and that no polarization persists in the tight-coupling limit. Comment: LaTeX, 33 pages |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.82.063509 |
| URL الوصول: | http://arxiv.org/abs/1003.1834 |
| رقم الأكسشن: | edsarx.1003.1834 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.82.063509 |
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