The Unruh Effect and Measurements in Relativistic Quantum Field Theory a.k.a undergrad thesis

Lately intense discussion regarding measurements in relativistic quantum mechanics has been developed. We present the Fewster-Verch measuring scheme that allows to address problems of locality and causality; an explicit example is given and is used to model an Unruh-deWitt type of detector. The results are compared with the traditional approach of the UdW detector, which is also given in the work, and found to be the same under certain considerations. For the sake of completeness and to gain a deeper understanding of the phenomena, a standard as well as an algebraic derivation of the Unruh effect is given. The topics treated in this thesis may attract people from different fields such as QMT, QFT and AQFT. We hope the reader find this work as an useful introduction for those topics and foremost, an interesting review of the Unruh effect and the Fewster and Verch measurement scheme in relativistic quantum mechanics.