Late-time quantum radiation by a uniformly accelerated detector in de Sitter spacetime
Late-time quantum radiation by a uniformly accelerated detector in de Sitter spacetime
We investigate the quantum radiation emitted by a uniformly accelerated Unruh-DeWitt detector in de Sitter spacetime. We find that there exists a nonvanishing quantum radiation at late times in the radiation zone of the conformally flat coordinates, which cover the region behind the cosmological horizon for the accelerated detector. The …