Effects of particle production during inflation Export

@article{citeulike:3361764, abstract = {The impact of particle production during inflation on the primordial curvature perturbation spectrum is investigated both analytically and numerically. We obtain an oscillatory behavior on small scales, while on large scales the spectrum is unaffected. The amplitude of the oscillations is proportional to the number of coupled fields, their mass, and the square of the coupling constant. The oscillations are due a discontinuity in the second time derivative of the inflaton, arising from a temporary violation of the slow-roll conditions. A similar effect on the power spectrum should be produced also in other inflationary models where the slow-roll conditions are temporarily violated.}, archivePrefix = {arXiv}, author = {Romano, Antonio E. and Sasaki, Misao}, citeulike-article-id = {3361764}, citeulike-linkout-0 = {http://arxiv.org/abs/0809.5142}, citeulike-linkout-1 = {http://arxiv.org/pdf/0809.5142}, day = {30}, eprint = {0809.5142}, keywords = {cosmology, perturbations}, month = {Sep}, posted-at = {2008-10-03 09:03:26}, priority = {2}, title = {Effects of particle production during inflation}, url = {http://arxiv.org/abs/0809.5142}, year = {2008} }

TY - JOUR ID - citeulike:3361764 L3 - citeulike-article-id:3361764 N2 - The impact of particle production during inflation on the primordial curvature perturbation spectrum is investigated both analytically and numerically. We obtain an oscillatory behavior on small scales, while on large scales the spectrum is unaffected. The amplitude of the oscillations is proportional to the number of coupled fields, their mass, and the square of the coupling constant. The oscillations are due a discontinuity in the second time derivative of the inflaton, arising from a temporary violation of the slow-roll conditions. A similar effect on the power spectrum should be produced also in other inflationary models where the slow-roll conditions are temporarily violated. TI - Effects of particle production during inflation KW - cosmology KW - perturbations AU - Romano, Antonio AU - Sasaki, Misao PY - 2008/Sep/30/ UR - http://arxiv.org/abs/0809.5142 ER -