Εμφανίζονται 1 - 20 Αποτελέσματα από 55.490 για την αναζήτηση 'Spacetime Quantization', χρόνος αναζήτησης: 0,84δλ Περιορισμός αποτελεσμάτων
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    Report

    Συγγραφείς: Ma, Weihu, Ma, Yu-Gang

    Πηγή: Nucl. Phys. B 1022 (2026) 117282

    Θεματικοί όροι: General Physics

    Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2601.15649

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    Academic Journal

    Θεματικοί όροι: Physical Sciences, Mathematical Physics, Applied Physics

    Περιγραφή αρχείου: application/pdf

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    Dissertation/ Thesis

    Συγγραφείς: Mozota Frauca, Álvaro

    Thesis Advisors: de Bianchi, Silvia, Hoefer, Carl

    Πηγή: TDX (Tesis Doctorals en Xarxa)

    Περιγραφή αρχείου: application/pdf

    Σύνδεσμος πρόσβασης: http://hdl.handle.net/10803/687813

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    Dissertation/ Thesis
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    Academic Journal

    Συγγραφείς: Weihu Ma, Yu-Gang Ma

    Πηγή: Nuclear Physics B. 1022 C

    Σύνδεσμος πρόσβασης: https://doi.org/10.1016/j.nuclphysb.2025.117282

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    Mixed Materials

    Additional Titles: We study gravitational perturbations of the Schwarzschild metric in the context of noncommutative gravity. $r-φ$ and $r-t$ noncommutativity are introduced through a Moyal twist of the Hopf algebra of diffeomorphisms. Differential geometric structures such as curvature tensors are also twisted. Noncommutative equations of motion are derived from the recently proposed NC vacuum Einstein equation. Here, in addition to previously calculated axial NC potential, we present the polar solution which generalizes the work done by Zerilli. Quasinormal mode frequencies of the two potentials are calculated using three methods: WKB, Pöschl-Teller and Rosen-Morse. Notably, we apply the WKB method up to the 13th order and determine the optimal order for each noncommutative parameter value individually. Additionally, we provide comprehensive error estimations for the higher-order WKB calculations, offering insights into the accuracy of our results. By comparing the spectra, we conclude that the classical isospectrality of axial and polar modes is broken upon spacetime quantization. Isospectrality is restored in the eikonal limit.

    Σύνδεσμος: http://arxiv.org/abs/2409.01402

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    eBook

    Συγγραφείς: Gerhardt, ClausAff25

    Συνεισφορές: van Beijeren, Henk, Series EditorAff1, Blanchard, Philippe, Series EditorAff2, Coecke, Bob, Series EditorAff3, Dieks, Dennis, Series EditorAff4, Dittrich, Bianca, Series EditorAff5, Durrer, Ruth, Series EditorAff6, Frigg, Roman, Series EditorAff7, Fuchs, Christopher, Series EditorAff8, Giulini, Domenico J. W., Series EditorAff9, Jaeger, Gregg, Series EditorAff10, Kiefer, Claus, Series EditorAff11, Landsman, Nicolaas P., Series EditorAff12, Maes, Christian, Series EditorAff13, Murao, Mio, Series EditorAff14, Nicolai, Hermann, Series EditorAff15, Petkov, Vesselin, Series EditorAff16, Ruetsche, Laura, Series EditorAff17, Sakellariadou, Mairi, Series EditorAff18, van der Merwe, Alwyn, Series EditorAff19, Verch, Rainer, Series EditorAff20, Werner, Reinhard F., Series EditorAff21, Wüthrich, Christian, Series EditorAff22, Young, Lai-Sang, Series EditorAff23, Gerhardt, ClausAff24

    Πηγή: The Quantization of Gravity. 194:1-38

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    Report

    Συγγραφείς: Carneiro, S., Nemes, M. C.

    Πηγή: Chaos Solitons Fractals 24:1183-1187,2005

    Θεματικοί όροι: High Energy Physics - Theory

    Σύνδεσμος πρόσβασης: http://arxiv.org/abs/hep-th/0410188

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