Quantum Kinetic Theory with Nonlocal Coherence by Matti Herranen

Preface The work reviewed in this thesis has been carried out during the years 2005-2009 at the Department of Physics in the University of Jyväskylä. I am most grateful to my supervisor Doc. Kimmo Kainulainen for excellent guidance and support during these years. I have been privileged to share his profound ideas and wide knowledge of particle physics and cosmology. A major part of this work has been done in collaboration with Pyry Rahkila, to whom I want to extend my warmest thanks. I also want to express my gratitude to Prof. emer. Vesa Ruuskanen who introduced me to Kimmo many years ago, and to Prof. Mikko Laine and Prof. Kari Rummukainen for careful reading of the manuscript and valuable comments. I also wish to thank the staff and friends at the Department of Physics for creating an inspiring and pleasant working atmosphere.