Inflationary Cosmology from Supergravity

The supergravity models for cosmological inflation and dark matter are introduced by assuming their (super)gravitational origin. Inflation is known to be sensitive to quantum gravity needed for its ultraviolet completion. Supergravity is considered as the meeting point of high-energy physics and cosmology, as well as the bridge between classical and quantum gravities. String theory is a mathematically consistent theory of quantum gravity that requires space-time supersymmetry. Modified supergravity theories are introduced as the extensions of the Starobinsky model of inflation based on modified gravity. Physical applications of the supergravity models include viable single-field and multi-field inflation, high-scale spontaneous supersymmetry breaking, primordial black hole production, and dark matter genesis. Supermassive gravitino particles and primordial black holes are the viable candidates for the dark matter originating from supergravity. High-precision measurements of the cosmic microwave background radiation by satellite missions and detection of the gravitational waves, induced by primordial black hole formation, by the future space-based gravitational interferometers can be viewed as the possible observational tests of the cosmological models based on supergravity theory.