Lorentz violations in gravitational waves are investigated. Plane-wave solutions for arbitrary
gauge-invariant violations in linearized gravity are constructed. Signatures of Lorentz …

In this work, we study quantum metrology protocol in the context of relativistic quantum fields
in curved spacetimes. In particular, we restrict our attention to the isotropic and anisotropic …

We conjecture that the Higgs potential can be significantly modified when it is in close
proximity to the horizon of an astrophysical black hole, leading to the destabilization of the …

In this work, we investigate how the anisotropy affects the cosmological parameters
estimation. Here the anisotropy is incorporated as a small gravitational disturbance. We …