In search of a covariant quantum measure

Surya, Sumati

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4529

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DC Field	Value	Language
dc.contributor.author	Surya, Sumati	-
dc.date.accessioned	2012-05-24T03:50:53Z	-
dc.date.available	2012-05-24T03:50:53Z	-
dc.date.issued	2011-07	-
dc.identifier.citation	Journal of Physics: Conference Series, Vol 306, p012018	en
dc.identifier.issn	1742-6588	-
dc.identifier.issn	1742-6596-(online)	-
dc.identifier.uri	http://hdl.handle.net/2289/4529	-
dc.description	Open Access, Proceedings of 5th International Workshop DICE2010: Space-Time-Matter – Current Issues in Quantum Mechanics and Beyond 13–17th September 2010, Castello Pasquini, Castiglioncello, Tuscany, Italy	en
dc.description.abstract	In the quantum measure approach, quantum theory is viewed as a generalisation of classical stochastic theory rather than of classical deterministic theory. An observable or "be-able" is thus a quantum measurable set in an appropriate event algebra. Thus, the observables in quantum cosmology are covariant quantum measurable sets. In a quantum system with a strongly positive quantum measure or decoherence functional one can construct a vector valued measure whose domain is the algebra of events or physical questions. Using results in the literature, this allows us to specify when a vector valued measure on finite time events can be extended to a measure over infinite time, or equivalently, covariant events. For the class of complex percolation dynamics we show that there is a generic obstruction to this process and that covariant observables can be constructed only for a very restricted class of dynamics.	en
dc.language.iso	en	en
dc.publisher	IOP Publishing Ltd	en
dc.relation.uri	http://dx.doi.org/10.1088/1742-6596/306/1/012018	en
dc.rights	2011 IOP Publishing Ltd	en
dc.title	In search of a covariant quantum measure	en
dc.type	Article	en
Appears in Collections:	Research Papers (TP)

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