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Selected stable states in large quantum systems
Author(s) -
Hatch Dorian M.
Publication year - 1975
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560090407
Subject(s) - degrees of freedom (physics and chemistry) , homogeneous space , commutation , quantum , context (archaeology) , theoretical physics , physics , quantum mechanics , statistical physics , classical mechanics , mathematics , paleontology , geometry , voltage , biology
The utility of an infinite number of degrees of freedom is examined in the context of quantum systems. Such systems are known to allow inequivalent representations of the commutation relations, qualitative differentiation (spontaneously broken symmetries) arising from cooperative effects, and superselected stable states. This freedom is discussed and then used in an exactly soluble model of the measurement process.