Abstract
Using the Minimal Irreversible Quantum Mechanicsformalism, it is demonstrated that the quantum regimecan be considered as the transient phase while the finalclassical equilibrium regime is the permanent state. A basis where exact matrix decoherenceappears for these final states is found. The appearanceof a classical universe in quantum gravity models is thecosmological version of this problem.
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Castagnino, M., Gunzig, E. & Laura, R. Minimal Irreversible Quantum Mechanics: Decoherence and Classical Equilibrium Limit. International Journal of Theoretical Physics 38, 2805–2822 (1999). https://doi.org/10.1023/A:1026691628543
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DOI: https://doi.org/10.1023/A:1026691628543