We derive a master equation for the reduced density matrix of uniformly accelerating quantum detector in arbitrary dimensions, generically coupled to field initially its vacuum state, and analyze late time regime. find that such asymptotically reaches Gibbs state. The particularities evolution towards this state are encoded response function, which depends on dimension, properties fields, speci...

A bstract We study the radiative process of two entangled two-level atoms uniformly accelerated in a thermal bath, coupled to massless scalar field. First, by using positive frequency Wightman function from Minkowski modes with Rindler transformation we provide transition probabilities for transitions maximally symmetric and anti-symmetric Bell states collective excited or ground state (1 + 1) ...

We propose a scalar background in Minkowski spacetime imparting constant proper acceleration to a classical particle. In contrast to the case of a constant electric field the proposed scalar potential does not create particle-antiparticle pairs. Therefore an elementary particle accelerated by such field is a more appropriate candidate for an " Unruh-detector " than a particle moving in a consta...

We consider coordinate systems adapted to accelerated observers, construct a generalised Rindler metric and then adopt a specific form of it to compute the semiclassical Unruh temperature, using a WKB approximation within a Hamilton Jacobi analysis in the tunneling picture. Corrections to this temperature are next computed by going beyond the usual WKB approximation. A connection of the correct...

We give a general treatment of the spontaneous excitation rates and the non-relativistic Lamb shift of constantly accelerated multi-level atoms as a model for multi-level detectors. Using a covariant formulation of the dipole coupling between the atom and the electromagnetic field we show that new Raman-like transitions can be induced by the acceleration. Under certain conditions these transiti...