Non-minimal scalar fields in 2D de Sitter and dilaton black holes

Understand

We study non-minimal quantum fields in the gravitational field of 2-dimensional dilaton black holes and the de Sitter spacetime.

• We found that the Green functions for non-minimal massless fields in a particular class of dilaton black holes and in the de Sitter spacetime are almost identical.
• Using this symmetry exact solutions are derived for quasinormal modes and bound states in these background geometries.
• The problem of stability of dilaton black holes is discussed.