The program of a physical concept of information is outlined in the framework of quantum theory. A proposal is made for how to avoid the introduction of axiomatic observables. The conventional… (More)

In his recent article on "Quantum theory without observers" [1], Sheldon Goldstein raised a number of important questions about quantum theory. Even though I cannot quite understand what a universal… (More)

Schrödinger's wave function shows many aspects of a state of incomplete knowledge or information (" bit "): (1) it is usually defined on a space of classical configurations, (2) its generic… (More)

1. Those emphasizing contradictions obtained when the process of measurement is itself described in terms of quantum theory. ~1~ 2. Those claiming that measurement may well be explained by quantum… (More)

The relation between quantum measurement and thermodynam-ically irreversible processes is investigated. The reduction of the state vector is fundamentally asymmetric in time and shows an… (More)

to be published in " Physical Origins of Time Asymmetry " ed. Abstract: It is argued that Hawking's 'greatest mistake' may not have been a mistake at all. According to the canonical quantum theory of… (More)

Epistemological consequences of quantum nonlocality (entanglement) are discussed under the assumption of a universally valid Schrödinger equation and the absence of hidden variables. This leads… (More)

Quantum theory does not require the existence of discontinuities: neither in time (quantum jumps), nor in space (particles), nor in spacetime (quantum events). These apparent discontinuities are… (More)

The concept of decoherence is defined, and discussed in a historical context. This is illustrated by some of its essential consequences which may be relevant for the interpretation of quantum theory.… (More)

The appearance of spinor fields as operators or arguments of field functionals in quantum field theory is often regarded as a second quantization, since fermion wave functions were themselves… (More)