scholarly journals Covariance in self-dual inhomogeneous models of effective quantum geometry: Spherical symmetry and Gowdy systems

2018 ◽  
Vol 97 (12) ◽  
Author(s):  
Jibril Ben Achour ◽  
Suddhasattwa Brahma
Keyword(s):  
Spherical Symmetry ◽  
Quantum Geometry ◽  
Inhomogeneous Models

scholarly journals Horizons as boundary conditions in spherical symmetry

2019 ◽  
Vol 100 (6) ◽  
Author(s):  
Sharmila Gunasekaran ◽  
Ivan Booth
Keyword(s):  
Boundary Conditions ◽  
Spherical Symmetry

scholarly journals Ground-state quantum geometry in superconductor–quantum dot chains

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
R. L. Klees ◽  
J. C. Cuevas ◽  
W. Belzig ◽  
G. Rastelli
Keyword(s):  
Quantum Dot ◽  
Ground State ◽  
Quantum Geometry

scholarly journals In Vacuo Dispersion-Like Spectral Lags in Gamma-Ray Bursts

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 541
Author(s):  
Giovanni Amelino-Camelia ◽  
Giacomo D’Amico ◽  
Fabrizio Fiore ◽  
Simonetta Puccetti ◽  
Michele Ronco
Keyword(s):  
Statistical Analysis ◽  
Linear Correlation ◽  
Gamma Ray ◽  
Statistical Evidence ◽  
Gamma Ray Bursts ◽  
Quantum Geometry

Some recent studies exposed preliminary but rather intriguing statistical evidence of in vacuo dispersion-like spectral lags for gamma-ray bursts (GRBs), a linear correlation between time of observation and energy of GRB particles, which is expected in some models of quantum geometry. Those results focused on testing in vacuo dispersion for the most energetic GRB particles, and in particular only included photons with energy at emission greater than 40 GeV. We here extend the window of the statistical analysis down to 5 GeV and find results that are consistent with what had been previously noticed at higher energies.

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