32 citations · 60 across the 3 of their papers we have counts for
3 papers
gr-qc2009★ 8 cited
More on the covariant retarded Green's function for the electromagnetic field in de Sitter spacetime
Atsushi Higuchi, Yen Cheong Lee, Jack R. Nicholas
In a recent paper (Phys. Rev. D78, 084031 (2008), arXiv:0808.0642, Ref. [1]) it was shown in examples that the covariant retarded Green's functions in particular gauges for electro…
gr-qc2009★ 20 cited
A conformally coupled massive scalar field in the de Sitter expanding universe with the mass term treated as a perturbation
Atsushi Higuchi, Yen Cheong Lee
We study conformally-coupled massive scalar field theory with the mass term treated as a perturbation in the expanding half of de Sitter spacetime as a toy model for comparing vari…
gr-qc2008★ 32 cited
How to use retarded Green's functions in de Sitter spacetime
Atsushi Higuchi, Yen Cheong Lee
We demonstrate in examples that the covariant retarded Green's functions in electromagnetism and linearized gravity work as expected in de Sitter spacetime. We first clarify how re…