Titlebook: Decoherence and the Appearance of a Classical World in Quantum Theory; Erich Joos,H. Dieter Zeh,Ion-Olimpiu Stamatescu Book 2003Latest edi

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Galilean Symmetry of Non-Relativistic Quantum Mechanics,ranslation vector (.). The multiplication law is given by.We shall throughout ignore problems that might arise due to the non-simply-connectedness of the rotation group .(3), since we can always consider its simply-connected double cover .(2) instead.

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Decoherence in Quantum Field Theory and Quantum Gravity,cussed in the framework of quantum mechanical systems, i.e. systems with finitely many degrees of freedom, it is the purpose of this chapter to extend these discussions to situations where quantum . play an important role. Moreover, the inclusion of a quantised gravitational field will entail new co

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Consistent Histories and Decoherence,he “relevant” or “distinguished” part) and its environment (called the “irrelevant” or “ignored” part). Provided certain initial conditions hold, “coarsegraining” with respect to the irrelevant degrees of freedom may lead to the emergence of classical behaviour in the relevant part, since (almost) a

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