Dark spinor driven inflation
  Inflation is considered to be the best paradigm for describing the early
universe. However, it is still unclear what is the nature of the field which
drives inflation. In this talk, we discuss the possibility of spinor field
driving inflation. Spinflaton -- a scalar condensate of the dark spinor field
-- has a single scalar degree of freedom and leads to the identical
acceleration equation as the scalar field. We also discuss the advantages of
this model compared to the scalar field driven inflation and discuss its
observational relevance.
