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Open Quantum Systems and Feynman Integrals

  • Pavel Exner

Part of the Fundamental Theories of Physics book series (FTPH, volume 6)

Table of contents

  1. Front Matter
    Pages i-xix
  2. Pavel Exner
    Pages 98-145
  3. Pavel Exner
    Pages 146-212
  4. Pavel Exner
    Pages 213-277
  5. Back Matter
    Pages 315-356

About this book

Introduction

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. In both the system under consideration is viewed as part of a larger system, assumed to be isolated in a reasonable approximation. They are differentiated mainly by the way in which the state Hilbert space of the open system is related to that of the isolated system - either by orthogonal sum or by tensor product. Though often applicable simultaneously to the same physical situation, these approaches are complementary in a sense and are adapted to different purposes. Here we shall be concerned with the first approach, which is suitable primarily for a description of decay processes, absorption, etc. The second approach is used mostly for the treatment of various relaxation phenomena. It is comparably better examined at present; in particular, the reader may consult a monograph by E. B. Davies.

Keywords

Algebra dynamics model operator scattering theory

Authors and affiliations

  • Pavel Exner
    • 1
  1. 1.Nuclear CentreCharles UniversityPragueCzechoslovakia

Bibliographic information

  • DOI https://doi.org/10.1007/978-94-009-5207-2
  • Copyright Information Springer Science+Business Media B.V. 1985
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-94-010-8803-9
  • Online ISBN 978-94-009-5207-2
  • Buy this book on publisher's site
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