Can Effective Field Theory of inflation generate large tensor-to-scalar ratio within Randall–Sundrum single braneworld?

摘要: Abstract In this paper my prime objective is to explain the generation of large tensor-to-scalar ratio from single field sub-Planckian inflationary paradigm within Randall–Sundrum (RS) braneworld scenario in a model independent fashion. By explicit computation I have shown that effective theory prescription brane inflation RS setup consistent with excursion inflaton field, which will further generate value ratio, provided energy density for degrees freedom high enough compared tension regime. Finally, mentioned stringent theoretical constraint on positive tension, cut-off quantum gravity scale and bulk cosmological constant get along as recently observed by BICEP2 or at least generates upper bound Planck (2013 2015) data Planck+BICEP2+Keck Array joint constraint.