Constraining Snyder and GUP models with low-mass stars

A Pachoł, A Wojnar - The European Physical Journal C, 2023 - Springer
We investigate the application of an equation of state that incorporates corrections derived
from the Snyder model (and the Generalized Uncertainty Principle) to describe the …

[HTML][HTML] On the κ-Dirac oscillator revisited

FM Andrade, EO Silva, MM Ferreira Jr, EC Rodrigues - Physics Letters B, 2014 - Elsevier
This Letter is based on the κ-Dirac equation, derived from the κ-Poincaré–Hopf algebra. It is
shown that the κ-Dirac equation preserves parity while breaks charge conjugation and time …

Symmetries of κ-Minkowski space-time: a possibility of exotic momentum space geometry?

P Nandi, A Chakraborty, SK Pal, B Chakraborty… - Journal of High Energy …, 2023 - Springer
A bstract The quest for a quantum gravity phenomenology has inspired a quantum notion of
space-time, which motivates us to study the fate of the relativistic symmetries of a particular …

Twists, realizations and Hopf algebroid structure of κ-deformed phase space

T Jurić, S Meljanac, R Štrajn - International journal of modern …, 2014 - World Scientific
The quantum phase space described by Heisenberg algebra possesses undeformed Hopf
algebroid structure. The κ-deformed phase space with noncommutative coordinates is …

Planck-scale-deformed relativistic symmetries and diffeomorphisms in momentum space

G Amelino-Camelia, S Bianco, G Rosati - Physical Review D, 2020 - APS
We study the implications of a change of coordinatization of momentum space for theories
with curved momentum space. We of course find that after a passive diffeomorphism the …

[HTML][HTML] Relative-locality effects in Snyder spacetime

S Mignemi, A Samsarov - Physics Letters A, 2017 - Elsevier
Most models of noncommutative geometry and doubly special relativity suggest that the
principle of absolute locality should be replaced by the milder notion of relative locality. In …

Diffeomorphisms in momentum space: Physical implications of different choices of momentum coordinates in the Galilean Snyder model

G Gubitosi, S Mignemi - Universe, 2022 - mdpi.com
It has been pointed out that different choices of momenta can be associated to the same
noncommutative spacetime model. The question of whether these momentum spaces …

Unified description for -deformations of orthogonal groups

A Borowiec, A Pachoł - The European Physical Journal C, 2014 - Springer
In this paper we provide universal formulas describing Drinfeld-type quantization of
inhomogeneous orthogonal groups determined by a metric tensor of an arbitrary signature …

[HTML][HTML] The 2D κ-Dirac oscillator

FM Andrade, EO Silva - Physics Letters B, 2014 - Elsevier
Abstract In this Letter, 2D Dirac oscillator in the quantum deformed framework generated by
the κ-Poincaré–Hopf algebra is considered. The problem is formulated using the κ-deformed …

Search for footprints of quantum spacetime in black hole QNM spectrum

MD Ćirić, N Konjik, A Samsarov - arxiv preprint arxiv:1910.13342, 2019 - arxiv.org
Black hole (BH) perturbation is followed by a ringdown phase which is dominated by
quasinormal modes (QNM). These modes may provide key signature of the gravitational …