摘要: A simple one-dimensional model for the system–apparatus interaction is analysed. The system a spin-1/2 particle, and its position momentum degrees constitute apparatus. An analysis involving only unitary Schrodinger dynamics illustrates nature of correlations established in entangled state. It shown that even absence any environment-induced decoherence, or other measurement model, certain initial states apparatus – like localized Gaussian wavepackets are preferred over others, terms measurementlike one-to-one pure
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