Quantum theory is at the foundation of the physical description of our world. One of the people who contributed significantly to our conceptual understanding of this theory was Heinz-Dieter Zeh (1932-2018). He was the pioneer of the process of decoherence, through which the classical appearance of our world can be understood. This volume presents a collection of essays dedicated to his memory, written by distinguished scientists and scholars. They cover all aspects of the interpretation of quantum theory in general and the quantum-to-classical transition in particular. This volume provides illuminating reading to anyone seeking a deep understanding of quantum theory and its relevance to the foundations of physics.

Autorentext
Claus Kiefer is a professor of theoretical physics at the University of Cologne. He does research on quantum gravity and the foundations of quantum theory as well as studying black holes and more general cosmological questions. In 2009, his essay, "Does Time Exist in Quantum Gravity?", was awarded second prize by the Foundational Questions Institute, New York. In 2012, his essay, "Can Effects of Quantum Gravity Be Observed in the Cosmic Microwave Background?" (written together with Manuel Krämer), was awarded first prize by the Gravity Research Foundation, Wellesley Hills, USA.

Inhalt
Contributing authors:

Markus Arndt (Vienna)

Markus Aspelmeyer (Vienna)

Andrei Barvinsky (Moscow)

Dagmar Bruß (Düsseldorf)

Peter Byrne (writer, Everett biographer),

Lajos Diosi (Budapest)

Domenico Giulini (Hannover)

Klaus Hornberger (Duisburg-Essen)

Bei-Lok Hu (Maryland)

Alexander Kamenshchik (Bologna)

Heinrich Paes (Dortmund)

Maximilian Schlosshauer (Portland)

Ion-Olimpiu Stamatescu (Heidelberg),

Wojciech Zurek (Los Alamos). Potentially 1-3 reprints of key papers by Dieter Zeh