Sang Pyo Kim

activity

20242026

collaborators

4 papers

hep-th2026

Exact one-loop QED actions in global $(A) dS_{2}$

Chiang-Mei Chen, Sang Pyo Kim, Cristian Andres Rivera Medina

Using the in-out formalism, we derive the exact one-loop QED effective actions for spinor field in a uniform electric field in two-dimensional global (anti-)de Sitter (A)dS $_{2}$ spa…

hep-th2026

Reciprocal relation of Schwinger pair production between $dS_{2}$ and $AdS_{2}$

Chiang-Mei Chen, Chun-Chih Huang, Sang Pyo Kim +1

The Klein-Gordon and Dirac equation for a massive charged field in a uniform electric field has a symmetry of two-dimensional global de Sitter (dS) and anti-de Sitter (AdS) space.…

hep-th2025

Saturation of Pauli blocking in near-extremal charged Nariai black holes

Chiang-Mei Chen, Chun-Chih Huang, Sang Pyo Kim

We solve the Dirac equation for a massive charged fermion in the near-extremal charged Nariai black hole with the near-horizon geometry $dS_{2} \times S^{2}$ . At the…

hep-th2024

Catastrophic Emission of Charges from Near-Extremal Charged Nariai Black Holes. II. Rotation Effect

Chiang-Mei Chen, Chun-Chih Huang, Sang Pyo Kim +1

Kerr-Newman black holes in a de Sitter (dS) space have the limit of rotating Nariai black holes with the near-horizon geometry of a warped $dS_{3} \times S^{1} / Z_{2}$ when th…

Exact one-loop QED actions in global (A)dS2​

Reciprocal relation of Schwinger pair production between dS2​ and AdS2​

Saturation of Pauli blocking in near-extremal charged Nariai black holes

Catastrophic Emission of Charges from Near-Extremal Charged Nariai Black Holes. II. Rotation Effect

Exact one-loop QED actions in global $(A) dS_{2}$

Reciprocal relation of Schwinger pair production between $dS_{2}$ and $AdS_{2}$