مشخصات پژوهش

عنوان	Non-Gaussianity of scalar perturbations in tachyon field inflation coupled to Gauss-Bonnet curvature
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	Inflation, Cosmological perturbations, Non-Gaussianity, Non-minimal coupling, Observational constraints
چکیده	We study an inflationary model which a tachyon field, that is nonminimally coupled to the Gauss-Bonnet term, drives the inflation. The primordial perturbations in this setup are studied with details. By taking an exponential potential into account and performing a numerical analysis on the perturbation parameters, we obtain some constraints on the Gauss-Bonnet coupling parameter. Finally, the non-Gaussianity feature of the primordial tachyonic perturbations in this setup is studied.
پژوهشگران	نرگس رشیدی تلوکی (نفر سوم)، رضا آقابراریان (نفر دوم)، کوروش نوذری (نفر اول)