151 citations · 384 across the 7 of their papers we have counts for
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hep-th2011★ 3 cited
QED Effective Actions in Space-Dependent Gauge and Electromagnetic Duality
Sang Pyo Kim
We develop the in-out formalism for one-loop effective actions in electromagnetic fields in the space-dependent gauge. We further advance a method using the inverse scattering matr…
hep-th2010★ 12 cited
Vacuum Structure of de Sitter Space
Sang Pyo Kim
In the in-/out-state formalism we find the exact one-loop effective action of a massive scalar field in the global coordinates of de Sitter spaces, which is a gravity analog of the…