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Computability of the causal boundary by using isocausality
Computability of the causal boundary by using isocausalityar Recently, a new viewpoint on the classical c-boundary in Mathematical Relativity has been developed, the relations of this boundary with the conformal one and other classical boundaries have been analyzed, and its computation in some classes of spacetimes, as the standard stationary ones, has been carried out. In the present paper, we consider the notion of isocausality given by...
43 p pdu 25/09/2012 139 1
Từ khóa: mathematical relativity, nathematical physics, general relativity, quantum cosmology, Differential Geometry, toán lý, học thuyết vũ trụ tương đối
Metric Properties of the Fuzzy Sphere
The fuzzy sphere, as a quantum metric space, carries a sequence of metrics which we describe in detail. We show that the Bloch coherent states, with these spectral distances, form a sequence of metric spaces that converge to the round sphere in the high-spin limit. It is common practice in several fields to "approximate: a manifold with a finite or countable subset of its points. A typical example in particle physics is the study of quantum...
26 p pdu 25/09/2012 152 1
Từ khóa: Mathematical Physics, High Energy Physics, lý thuyết vật lý năng lượng cao, Operator algebras, quantum physics, vật lý lượng tử
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