Remote Inflation: Hybrid-like inflation without hybrid-type potential

Understand

A new scenario of hybrid-like inflation is considered without using hybrid-type potential.

• Radiation raised continuously by a dissipating inflaton field keeps symmetry restoration in a remote sector, and the false-vacuum energy of the remote sector dominates the energy density during inflation.
• Remote inflation is terminated when the temperature reaches the critical temperature, or when the slow-roll condition is violated.
• Without introducing a complex form of couplings, inflaton field may either roll-in (like a standard hybrid inflation) or roll-out (like an inverted-hybrid model or quintessential inflation) on arbitrary inflaton potential.