Noncommutative spaces of worldlines

The space of time-like geodesics on Minkowski spacetime is constructed as a coset space of the Poincaré group in (3+1) dimensions with respect to the stabilizer of a worldline. When this homogeneous space is endowed with a Poisson homogeneous structure compatible with a given Poisson-Lie Poincaré gr...

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Main Authors: Angel Ballesteros, Ivan Gutierrez-Sagredo, Francisco J. Herranz
Format: Article
Language:English
Published: Elsevier 2019-05-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319301868
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author Angel Ballesteros
Ivan Gutierrez-Sagredo
Francisco J. Herranz
author_facet Angel Ballesteros
Ivan Gutierrez-Sagredo
Francisco J. Herranz
author_sort Angel Ballesteros
collection DOAJ
description The space of time-like geodesics on Minkowski spacetime is constructed as a coset space of the Poincaré group in (3+1) dimensions with respect to the stabilizer of a worldline. When this homogeneous space is endowed with a Poisson homogeneous structure compatible with a given Poisson-Lie Poincaré group, the quantization of this Poisson bracket gives rise to a noncommutative space of worldlines with quantum group invariance. As an oustanding example, the Poisson homogeneous space of worldlines coming from the κ-Poincaré deformation is explicitly constructed, and shown to define a symplectic structure on the space of worldlines. Therefore, the quantum space of κ-Poincaré worldlines is just the direct product of three Heisenberg-Weyl algebras in which the parameter κ−1 plays the very same role as the Planck constant ħ in quantum mechanics. In this way, noncommutative spaces of worldlines are shown to provide a new suitable and fully explicit arena for the description of quantum observers with quantum group symmetry. Keywords: Time-like worldlines, Quantum groups, Poisson homogeneous spaces, Kappa-deformation, Non-commutative spaces, Quantum observers
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spelling doaj.art-caa164adc8f0486fa8013e8e5b3d7cf62022-12-21T22:25:22ZengElsevierPhysics Letters B0370-26932019-05-01792175181Noncommutative spaces of worldlinesAngel Ballesteros0Ivan Gutierrez-Sagredo1Francisco J. Herranz2Corresponding author.; Departamento de Física, Universidad de Burgos, 09001 Burgos, SpainDepartamento de Física, Universidad de Burgos, 09001 Burgos, SpainDepartamento de Física, Universidad de Burgos, 09001 Burgos, SpainThe space of time-like geodesics on Minkowski spacetime is constructed as a coset space of the Poincaré group in (3+1) dimensions with respect to the stabilizer of a worldline. When this homogeneous space is endowed with a Poisson homogeneous structure compatible with a given Poisson-Lie Poincaré group, the quantization of this Poisson bracket gives rise to a noncommutative space of worldlines with quantum group invariance. As an oustanding example, the Poisson homogeneous space of worldlines coming from the κ-Poincaré deformation is explicitly constructed, and shown to define a symplectic structure on the space of worldlines. Therefore, the quantum space of κ-Poincaré worldlines is just the direct product of three Heisenberg-Weyl algebras in which the parameter κ−1 plays the very same role as the Planck constant ħ in quantum mechanics. In this way, noncommutative spaces of worldlines are shown to provide a new suitable and fully explicit arena for the description of quantum observers with quantum group symmetry. Keywords: Time-like worldlines, Quantum groups, Poisson homogeneous spaces, Kappa-deformation, Non-commutative spaces, Quantum observershttp://www.sciencedirect.com/science/article/pii/S0370269319301868
spellingShingle Angel Ballesteros
Ivan Gutierrez-Sagredo
Francisco J. Herranz
Noncommutative spaces of worldlines
Physics Letters B
title Noncommutative spaces of worldlines
title_full Noncommutative spaces of worldlines
title_fullStr Noncommutative spaces of worldlines
title_full_unstemmed Noncommutative spaces of worldlines
title_short Noncommutative spaces of worldlines
title_sort noncommutative spaces of worldlines
url http://www.sciencedirect.com/science/article/pii/S0370269319301868
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