804 citations · 3.3k across the 158 of their papers we have counts for
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Schwinger mechanism in dS_2 and AdS_2 revisited
Sang Pyo Kim, W-Y. Pauchy Hwang, Tse-Chun Wang
Recalculating the Bogoliubov coefficients from the solutions in Phys. Rev. D 78, 103517 (2008), we obtain the mean number of boson pairs in a uniform electric field in the global c…
Schwinger Pair Production in Solitonic Gauge Fields
Sang Pyo Kim
We study the time-dependent solitonic gauge fields in scalar QED, in which a charged particle has the energy of reflectionless Pösch-Teller potential with natural quantum numbers.…
Phase Transitions in the Early Universe
W-Y. Pauchy Hwang, Sang Pyo Kim
The physics of the 20th Century is governed by two pillars, Einstein's relativity principle and the quantum principle. At the beginning of the 21st Century, it becomes clear that t…
Non-adiabatic Quantum Vlasov Equation for Schwinger Pair Production
Sang Pyo Kim, Christian Schubert
Using Lewis-Riesenfeld theory, we derive an exact non-adiabatic master equation describing the time evolution of the QED Schwinger pair production rate for a general time-varying e…
QED Effective Action in Magnetic Field Backgrounds and Electromagnetic Duality
Sang Pyo Kim
In the in-out formalism we advance a method of the inverse scattering matrix for calculating effective actions in pure magnetic field backgrounds. The one-loop effective actions ar…
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…