39 citations · 210 across the 21 of their papers we have counts for
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gr-qc2008★ 39 cited
The quantum theory of the free Maxwell field on the de Sitter expanding universe
Ion I. Cotaescu, Cosmin Crucean
The theory of the free Maxwell field in two moving frames on the de Sitter spacetime is investigated pointing out that the conserved momentum and energy operators do not commute to…
hep-th2008★ 4 cited
Coulomb scattering for scalar field in Scr\" odinger picture
Crucean Cosmin, Racoceanu Radu, Pop Adrian
The scattering of a charged scalar field on Coulomb potential on de Sitter space-time is studied using the solution of the free Klein-Gordon equation. We find that the scattering a…
gr-qc2008★ 27 cited
The quantum theory of scalar fields on the de Sitter expanding universe
Ion I. Cotaescu, Cosmin Crucean, Adrian Pop
New quantum modes of the free scalar field are derived in a special time-evolution picture that may be introduced in moving charts of de Sitter backgrounds. The wave functions of t…