On the Role of Entanglement in Schroedinger's Cat Paradox

Details On the Role of Entanglement in Schroedinger's Cat Paradox On the Role of Entanglement in Schroedinger's Cat Paradox

2007-05-21

arxiv.org/abs/0705.2935v2

Physics

Quantum Physics

10 pages; LaTeX; contact information updated

Scientific paper

10.2478/s11534-008-0021-5

In this paper we re-investigate the core of Schroedinger's 'cat paradox'. We argue that one has to distinguish clearly between superpositions of macroscopic cat states and superpositions of entangled states which comprise both the state of the cat. It is shown, that in the first instance recurrence to decoherence or other mechanisms is not necessary in this special case in order to explain the absence of macroscopic superpositions. Additionally, we present modified versions of two quantum optical experiments as experimenta crucis. Applied rigorously, quantum mechanical formalism reduces the problem to a mere pseudo-paradox.

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