A Unified Scheme for Generalized Sectors based on Selection Criteria. II. Spontaneously broken symmetries and some basic notions in quantum measurements

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dc.creatorOjima, I.
dc.date2002-06-20
dc.date.accessioned2026-07-07T04:29:16Z
dc.date.available2026-07-07T04:29:16Z
dc.descriptionContinuing the analysis in a unified scheme for treating generalized superselection sectors based upon the notion of selection criteria for states of relevance in quantum physics, we extend the Doplicher-Roberts superselection theory for recovering the field algebra and the gauge group (of the first kind) from the data of group invariant observables to the situations with spontaneous symmetry breakdown: in use of the machinery proposed, the basic structural features of the theory with spontaneously broken symmetry, are clarified in a clear-cut way, such as the degenerate vacua parametrized by the variable belonging to the relevant homogeneous space, the Goldstone modes and condensates.
dc.description22pages
dc.identifierhttps://arxiv.org/abs/math-ph/0206035
dc.identifierhttp://arxiv.org/abs/math-ph/0206035
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/57093
dc.subjectMathematical Physics
dc.titleA Unified Scheme for Generalized Sectors based on Selection Criteria. II. Spontaneously broken symmetries and some basic notions in quantum measurements
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