مشخصات پژوهش

عنوان	(2+1)-dimensional interacting model of two massless spin-2 fields as a bi-gravity model
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	Chern-Simons gravity , bi-gravity
چکیده	We propose a new group-theoretical (Chern-Simons) formulation for the bi-metric theory of gravity in (2+1)-dimensional spacetime which describe two interacting massless spin-2 fields. Our model has been formulated in terms of two dreibeins rather than two metrics. We obtain our Chern-Simons gravity model by gauging {\it mixed AdS-AdS Lie algebra} and show that it has a two dimensional conformal field theory (CFT) at the boundary of the anti de Sitter (AdS) solution. We show that the central charge of the dual CFT is proportional to the mass of the AdS solution. We also study cosmological implications of our massless bi-gravity model.
پژوهشگران	سعید حسین زاده نیری (نفر اول)، عادل رضائی اقدم (نفر دوم)