id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_cmkoqz22mjdzdglcw2y4swmxyi	Guido Bacciagaluppi	Insolubility Theorems and EPR Argument	2012	19	.pdf	application/pdf	6257	409	59	unitary Schrödinger equation it is impossible to reproduce the phenomenological description of quantum mechanical measurements (in particular the collapse of the state of the measured system) by assuming a suitable mixed initial state of the apparatus. Von Neumann's own argument to the contrary is that, assuming the relevant decomposition of the final state (1) to be of the form 5Presumably, the microscopic states of the apparatus corresponding to different readings need to be orthogonal, but will not form a basis of the (very high-dimensional) And indeed, since the finest ignorance-interpretable decomposition of ρ fixes the set of possible initial apparatus states that are invoked to explain the different measurement results, letting this decomposition depend on the state |ψ〉 of the system to be measured means that in general be noted, however, that von Neumann's assumption that the ignoranceinterpretable decomposition of the final state is of the form (6) essentially	./cache/work_cmkoqz22mjdzdglcw2y4swmxyi.pdf	./txt/work_cmkoqz22mjdzdglcw2y4swmxyi.txt