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- W145447652 abstract "The necessity to reconcile the laws of mechanics and electromagnetism has led to question our representation of space and time and to the development of relativity theory. Present most accurate determinations of positions in space and time rely on the exchange of electromagnetic signals and strongly depend on the relativistic conception of space-time. Despite the quantum nature of the electromagnetic fields and atomic clocks used for localization, space-time positions are yet usually treated as classical parameters. As discussed here, relativistic localization may be described by quantum observables representing space-time postions, and defined on the exchanged quantum fields. These quantum localization observables differ from their classical analogs by their non vanishing commutator, which involves spin observables. Alternatively, quantum positions may be defined as commuting but complex observables, which do not commute with their complex conjugates. There result new relations of space-time to algebra and geometry, and in particular modifications of relativistic frame transformations and covariance rules." @default.
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- W145447652 date "2004-01-01" @default.
- W145447652 modified "2023-09-27" @default.
- W145447652 title "Space-time localization with electromagnetic fields" @default.
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- W145447652 hasPublicationYear "2004" @default.
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