Bridging the Quantum-Classical Divide


In Chapter 7, we studied the discussions between Einstein and supporters of Copenhagen, in particular Max Born and Wolfgang Pauli, concerning the classical limit of quantum theory and macroscopic quantum theory. We discussed the argument of Born and Pauli that the limiting procedure was straightforward, and that there were no special features in macroscopic quantum theory, such as macrorealism, that could make it different in principle from microscopic quantum theory.


Quantum Theory Wave Packet Pure State Classical Limit Macroscopic System 
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