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hep-th2025
Induced energy-momentum tensor of the scalar field in 3D de Sitter QED
Manizheh Botshekananfard, Takahiro Hayashinaka
In this work, we derive the renormalized expectation value of the energy--momentum tensor of a quantized charged scalar field in three-dimensional de Sitter spacetime $\mathrm{dS}_…
hep-th2025
Ladder operators of the de Sitter algebra
Manizheh Botshekananfard, Elif Büşra Güraksın, Gizem Şengör
We identify raising and lowering operators of the de Sitter algebra with focus on their action on states in particular in 4 spacetime dimensions. There isn't a unique solution to t…