Quantum Measurements and Decoherence

Author: M. Mensky
Publisher: Springer Science & Business Media
ISBN: 9401595666
Format: PDF
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Quantum measurement (Le., a measurement which is sufficiently precise for quantum effects to be essential) was always one of the most impor tant points in quantum mechanics because it most evidently revealed the difference between quantum and classical physics. Now quantum measure ment is again under active investigation, first of all because of the practical necessity of dealing with highly precise and complicated measurements. The nature of quantum measurement has become understood much bet ter during this new period of activity, the understanding being expressed by the concept of decoherence. This term means a physical process lead ing from a pure quantum state (wave function) of the system prior to the measurement to its state after the measurement which includes classical elements. More concretely, decoherence occurs as a result of the entangle ment of the measured system with its environment and results in the loss of phase relations between components of the wave function of the measured system. Decoherence is essentially nothing else than quantum measurement, but considered from the point of view of its physical mechanism and resolved in time. The present book is devoted to the two concepts of quantum measure ment and decoherence and to their interrelation, especially in the context of continuous quantum measurement.

Mathematical Theory of Feynman Path Integrals

Author: Sergio Albeverio
Publisher: Springer Science & Business Media
ISBN: 3540769544
Format: PDF, ePub
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The 2nd edition of LNM 523 is based on the two first authors' mathematical approach of this theory presented in its 1st edition in 1976. An entire new chapter on the current forefront of research has been added. Except for this new chapter and the correction of a few misprints, the basic material and presentation of the first edition has been maintained. At the end of each chapter the reader will also find notes with further bibliographical information.

The Structure of Physics

Author: Carl F. von Weizsäcker
Publisher: Springer Science & Business Media
ISBN: 1402052359
Format: PDF, Mobi
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The book is a newly arranged and revised English version of "Aufbau der Physik" by Carl Friedrich von Weizsäcker. Some original chapters and sections have been deleted, and a new chapter about further insights and results of ur-theoretic research of the late 1980’s and 1990’s has been included. Carl Friedrich von Weizsäcker combines the perspectives of science, philosophy, religion and politics with a view towards the challenges as well as the responsibilities of our time.

Theorie der Elementarteilchen

Author: Klaus Sibold
Publisher: Springer-Verlag
ISBN: 3322801179
Format: PDF, ePub, Mobi
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Nach einer historisch orientierten Einleitung werden die Grundbegriffe der Quantenfeldtheorie eingeführt. Zusammen mit einer Erläuterung der Symmetrien in der klassischen und Quantenphysik bilden sie die Basis zur Darstellung der bekannten Wechselwirkungen: elektromagnetische, schwache und starke. Bemerkungen zur Renormierung ergänzen die qualitative Beschreibung. Ziel ist es, die theoretischen Grundlagen der Teilchenphysik möglichst elementar darzulegen.

Quantum Dynamical Semigroups and Applications

Author: Robert Alicki
Publisher: Springer Science & Business Media
ISBN: 354070860X
Format: PDF, Kindle
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Reinvigorated by advances and insights the quantum theory of irreversible processes has recently attracted growing attention. This volume introduces the very basic concepts of semigroup dynamics of open quantum systems and reviews a variety of modern applications. Originally published as Volume 286 (1987) in Lecture in Physics, this volume has been newly typeset, revised and corrected and also expanded to include a review on recent developments.