Violation of equivalence in an accelerating atom-mirror system in the generalized uncertainty principle framework

We study the spontaneous excitation of a two-level atom in presence perfectly reflecting mirror, when atom, or is uniformly accelerating framework generalized uncertainty principle (GUP). The quantized scalar field obeys modified dispersion relation leading to GUP deformed Klein-Gordon equation. solutions this equation with suitable boundary conditions are obtained calculate probability for two separate cases. show that case mirror accelerating, modulates spatial oscillation thus breaking symmetry between an relative stationary and excited by mirror. An explicit violation equivalence seems be manifested. further obtain upper bound on parameter using standard values system parameters.