%0 Journal Article
%T Spatially extended Unruh-DeWitt detectors for relativistic quantum information
%A Antony R. Lee
%A Ivette Fuentes
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevD.89.085041
%X Unruh-DeWitt detectors interacting locally with a quantum field are systems under consideration for relativistic quantum information processing. In most works, the detectors are assumed to be point-like and, therefore, couple with the same strength to all modes of the field spectrum. We propose the use of a more realistic detector model where the detector has a finite size conveniently tailored by a spatial profile. We design a spatial profile such that the detector, when inertial, naturally couples to a peaked distribution of Minkowski modes. In the uniformly accelerated case, the detector couples to a peaked distribution of Rindler modes. Such distributions are of special interest in the analysis of entanglement in non-inetial frames. We use our detector model to show the noise detected in the Minkowski vacuum and in single particle states is a function of the detector's acceleration.
%U http://arxiv.org/abs/1211.5261v2