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Partial wave analysis of the Dirac fermions scattered from Schwarzschild black holes
Ion I. Cotaescu, Cosmin Crucean, Ciprian A. Sporea
Asymptotic analytic solutions of the Dirac equation, giving the scattering modes (of the continuous energy spectrum, ) in Schwarzschild's chart and Cartesian gauge, are use…
On anti-de Sitter oscillators and de Sitter anti-oscillators
Ion I. Cotaescu
We revisit the principal arguments for interpreting the free quantum fields on anti-de Sitter or de Sitter spacetimes of any dimensions as oscillators or respectively anti-oscillat…
Acceleration in de Sitter spacetimes
Ion I. Cotaescu
We propose a definition of uniform accelerated frames in de Sitter spacetimes applying the Nachtmann method of introducing coordinates using suitable point-dependent isometries. In…
Accelerated frames in de Sitter spacetime
Ion I. Cotaescu
We propose a definition of the accelerated frames in de Sitter spacetime whose metric recovers the Rindler approach in the flat limit. Unfortunately, this metric has no a satisfact…