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Third Quantization and Quantum Universes
Sang Pyo Kim
We study the third quantization of the Friedmann-Robertson-Walker cosmology with -minimal massless fields. The third quantized Hamiltonian for the WDW equation in the minisupers…
Matrix Operator Approach to the Quantum Evolution Operator and the Geometric Phase
Sang Pyo Kim, Jewan Kim, Kwang Sup Soh
The Moody-Shapere-Wilczek's adiabatic effective Hamiltonian and Lagrangian method is developed further into the matrix effective Hamiltonian (MEH) and Lagrangian (MEL) approach to…
de Sitter Radiation and Backreaction in Quantum Cosmology
Je-An Gu, Sang Pyo Kim, Che-Min Shen
We explore the quantum cosmology description of the de Sitter (dS) radiation and its backreaction to dS space, inherent in the wave function of the Wheeler-DeWitt equation for pure…
Schwinger Pair Production in Pulsed Electric Fields
Sang Pyo Kim, Hyung Won Lee, Remo Ruffini
We numerically investigate the temporal behavior and the structure of longitudinal momentum spectrum and the field polarity effect on pair production in pulsed electric fields in s…
Lessons from Schwinger Effective Action for Black Holes
Sang Pyo Kim
We revisit the Hawking radiation by comparing the effective actions in the in-out formalism, and advance an interpretation of the vacuum polarization and the Hawking radiation. The…
Spontaneous Pair Production in Reissner-Nordstrom Black Holes
Chiang-Mei Chen, Sang Pyo Kim, I-Chieh Lin +2
We investigate the spontaneous pair production, including the Schwinger mechanism and the Hawking thermal radiation, of charged scalar particles from the near horizon region of a (…