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6 papers · 2 filters
A General Argument Against the Universal Validity of the Superposition Principle
Angelo Bassi, GianCarlo Ghirardi
We reconsider a well known problem of quantum theory, i.e. the so called measurement (or macro-objectification) problem, and we rederive the fact that it gives rise to serious prob…
On the Additivity of Entanglement of Formation
Fabio Benatti, Heide Narnhofer
We study whether the entanglement of formation is additive over tensor products and derive a necessary and sufficient condition for optimality of vector states that enables us to s…
Which Kind of Two-Particle States Can Be Teleported through a Three-Particle Quantum Channel?
Luca Marinatto, Tullio Weber
The use of a three-particle quantum channel to teleport entangled states through a slight modification of the standard teleportation procedure is studied. It is shown that it is no…
A Quantum Approach To Static Games Of Complete Information
Luca Marinatto, Tullio Weber
We extend the concept of a classical two-person static game to the quantum domain, by giving an Hilbert structure to the space of classical strategies and studying the Battle of th…
Local measurements of nonlocal observables and the relativistic reduction process
GianCarlo Ghirardi
In this paper we reconsider the constraints which are imposed by relativistic requirements to any model of dynamical reduction. We review the debate on the subject and we call atte…
On the weak-coupling limit and complete positivity
F. Benatti, R. Floreanini
We consider two non-interacting systems embedded in a heat bath. If they remain dynamically independent, physical inconsistencies are avoided only if the single-system reduced dyna…