- #1
GeorgeDishman
- 419
- 29
If an observer accelerates through a simple vacuum, it is often said that they see Unruh radiation with acceleration of ##2.5*10^{20} m/s^2## equivalent to a temperature of 1K, but I haven't seen the polar distribution described, one might assume it was from 'ahead' of the direction of acceleration, is that correct?
If so, by the equivalence principle, if I am at a constant radius from a mass, I am accelerating 'upwards' relative to a free-fall observer. Does that mean that looking up when standing on the Moon, I should see a thermal contribution to the sky at a temperature a little less than ##10^{-20} K##?
One source on this (Scholarpedia) states:
If so, by the equivalence principle, if I am at a constant radius from a mass, I am accelerating 'upwards' relative to a free-fall observer. Does that mean that looking up when standing on the Moon, I should see a thermal contribution to the sky at a temperature a little less than ##10^{-20} K##?
One source on this (Scholarpedia) states:
- "From the point of view of Rindler quantization (2) the detector is responding to the particles whose presence was calculated in (4). From the point of view of Minkowski quantization (1) the excitation of the detector is correlated with emission, not absorption, of particles (Unruh and Wald, 1984); thus a stationary (or inertial) observer "sees" the detector radiating, .."