CHAOTIC NEW INFLATION AND FORMATION OF PRIMORDIAL BLACK-HOLES - ART. NO. 083510

It is shown that in a number of scalar potentials with an unstable loc al maximum at the origin chaotic inflation is followed by new inflatio n if model parameters are appropriately chosen. In this model density fluctuation can have a large-amplitude peak on the comoving Hubble sca le at the onset of the slow-roll new inflation and can result in the f ormation of an appreciable amount of primordial black holes on astroph ysically interesting mass scales. [S0556-2821(98)09318-7].