مشخصات پژوهش

صفحه نخست /Non-minimal warm inflation ...
عنوان Non-minimal warm inflation and perturbations on the warped DGP brane with modified induced gravity
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها Braneworld gravity · Scalar–tensor theories · Induced gravity · Warm inflation · Perturbations
چکیده We construct a warm inflation model with inflaton field non-minimally coupled to induced gravity on a warped DGP brane. We incorporate possible modification of the induced gravity on the brane in the spirit of f (R)-gravity. We study cosmological perturbations in this setup. In the case of two field inflation such as warm inflation, usually entropy perturbations are generated. While it is expected that in the case of one field inflation these perturbations to be removed, we show that even in the absence of the radiation field, entropy perturbations are generated in our setup due to non-minimal coupling and modification of the induced gravity.We study the effect of dissipation on the inflation parameters of this extended braneworld scenario.
پژوهشگران بهناز فضل پور (نفر سوم)، معصومه شکرانی طالعی (نفر دوم)، کوروش نوذری (نفر اول)