Open System Theory

Empirical research needs a profound theory to be successful. This is the simple but, in its consequences, radical approach for this study in geomorphology. It critically analyses the current system understanding and offers a new view for a geomorphology that understands systems as being open but at the same time operationally closed, as self-organized, structure-building and potentially self-referential. Kirsten von Elverfeldt succeeds in designing a theoretical framework that sets new standards within Physical Geography. By using state-of-the-art concepts in system theory, it offers also new bridges to Human Geography as well as to other neighbouring disciplines.

Every part of physics offers examples of non-stability phenomena, but probably nowhere are they so plentiful and worthy of study as in the realm of quantum theory. The present volume is devoted to this problem: we shall be concerned with open quantum systems, i.e. those that cannot be regarded as isolated from the rest of the physical universe. It is a natural framework in which non-stationary processes can be investigated. There are two main approaches to the treatment of open systems in quantum theory.