Quantum mechanics is an extremely successful theory that agrees with every experimental
test. However, the principle of linear superposition, a central tenet of the theory, apparently …

Environment-induced decoherence and superselection have been a subject of intensive
research over the past two decades, yet their implications for the foundational problems of …

Over the course of the past decade, decoherence has become a ubiquitous scienti? c term
popular in all kinds of research, from fundamental theories of quantum physics to …

When we were preparing the first edition of this book, the concept of de coherence was
known only to a minority of physicists. In the meantime, a wealth of contributions has …

Stochastic differential equations describing the Markovian evolution of state vectors in the
quantum Hilbert space are studied as possible expressions of a universal dynamical …

A linear equation of motion for the state vector is presented, in which an anti-Hermitian
Hamiltonian that fluctuates randomly is added to the usual Hamiltonian of the Schrödinger …

The report presents an exhaustive review of the recent attempt to overcome the difficulties
that standard quantum mechanics meets in accounting for the measurement (or macro …

A nonlinear stochastic process is presented that, for each realization and for large times,
reproduces Lüder's projection postulate. The corresponding density operator undergoes a …

This book is not in any way intended to serve as a replacement for the standard theory of
quantum mechanics. A reader not yet thoroughly familiar with the basic concepts of quantum …

So far, the wave function has been interpreted as a probability amplitude, which is given
physical meaning by ensemble averages of a large number of identical systems at a given …