Localised projective measurement of a relativistic quantum field in   non-inertial frames
  We propose a scheme to study the effect of motion on measurements of a quantum field carried out by a finite-size detector. We introduce a model of projective detection of a localised field mode in an arbitrary reference frame. We apply it to extract vacuum entanglement by a pair of counter-accelerating detectors and to estimate the Unruh temperature of a single accelerated detector. The introduced method allows us to directly relate the observed effects with the instantaneous proper acceleration of the detector. 
Andrzej Dragan, Jason Doukas, Eduardo Martin-Martinez, David Edward   Bruschi
quant-ph gr-qc