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gr-qc2025★ 1 cited
Primordial Gravitational Wave Birefringence in a de Sitter Background with Chern-Simons Coupling
Abhishek Rout, Brett Altschul
In this work, we investigate tensor perturbations in a de Sitter background within the framework of Chern-Simons modified gravity. We introduce transverse-traceless perturbations a…
gr-qc2025
First Order Axial Perturbation of the Reissner-Nordström Metric in a Possible Parity-Violating Gravity Background
Abhishek Rout, Brett Altschul
We study axial perturbations of Reissner-Nordström black holes within the general framework of parity-violating modified gravity theories. We derive the governing equations for a c…