Wie der Titel besagt, beabsichtigt das vorliegende Heft, über jenes ausgedehnte Problemgebiet
zu berichten, das von der alten Frage der angenäherten Darstellung irrationaler Zahlen …

SATZ 1. Für fast alle 0 &# x3E; 1 ist () X gleichverteilt modulo Eins. BEMERKUNG." Fast alle"
ist gemeint im Sinne von Borel-Lebesgue: fast alle 0 eines Intervalles A oder () oder B (-00 …

We apply the decoherence formalism to an interacting scalar field theory. In the spirit of the
decoherence literature, we consider a “system field” and an “environment field” that interact …

We calculate the fermion propagator in Friedmann–Lemaître–Robertson–Walker (FLRW)
spacetimes with constant deceleration for excited states. For fermions whose mass is …

One hope to solve the cosmological constant problem is to identify a symmetry principle, based
on which the cosmological constant can be reduced either to zero, or to a tiny value. Here…

We study the decoherence of a renormalized quantum field theoretical system. We consider
our novel correlator approach to decoherence where entropy is generated by neglecting …

It is well known that loss of information about a system, for some observer, leads to an increase
in entropy as perceived by this observer. We use this to propose an alternative approach …

It has been argued that the quantum (conformal) trace anomaly could potentially provide us
with a dynamical explanation of the cosmological constant problem. In this paper, however, …

We study decoherence in a simple quantum mechanical model using two approaches. Firstly,
we follow the conventional approach to decoherence where one is interested in solving …

We formulate a novel approach to decoherence based on neglecting observationally
inaccessible correlators. We apply our formalism to a renormalised interacting quantum field …