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gr-qc2026
Stress-Energy Tensor for Modified General Relativity with Quantum-Deformed Metric in Riemann Spacetime
A. Tawfik, Saleh O. Allehabi, A. A. Alshehri +2
The generalized noncommutative Heisenberg algebra, which is based on the generalized uncertainty principle, imposes a minimal length uncertainty on quantum mechanics (QM), on one h…
gr-qc2025
Vacuum Homogeneous and Nonhomogeneous Metrics with Conventional and Quantized Metric Tensor: Singular or Nonsingular Solution
A. Tawfik, S. G. Elgendi, M. Hanafy
To investigate whether the Universe underwent a singularity or maintained a nonsingular state, we carry out analytical and numerical analyses of the evolution of the Raychaudhuri e…