Research Interest

• High Energy Physics - Theory [hep-th] & Early-Universe Cosmology

My expertise is based on conformal supergravity and its cosmological application to the early-universe phenomena. Currently, I am largely interested in excavating fundamental structures and unrevealed properties of HEP‑th objects like fields & strings and background geometries like spacetime, their novel mathematical and physical languages or formulations, and their cosmological and phenomenological implications. The modern topics of my interest include: Conformal SUGRA, Double Field Theory, Generalized Symmetries, Holographic principles,  Inflation, etc.

Academic Position

• Research Fellow, Center for Quantum Spacetime (CQUeST), Sogang University, Seoul, South Korea: Mar. 2024 – Present
  - PI: Prof. Jeong-Hyuck Park (@CQUeST)

• Affiliate Member, Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Kyoto, Japan: Oct. 2023 – Present
  - Host: Prof. Shinji Mukohyama (@YITP)

• Postdoctoral Researcher,  Research Institute of Basic Sciences (RIBS), Incheon National University, Incheon, South Korea: Sep. 2023 – Feb. 2025  

• Riemann Fellow, Riemann Center for Geometry and Physics (RCGP), Leibniz University Hannover, Hannover, Germany: Jul. 2022 – Nov. 2022 (4 mths)
  - Host: Prof. Olaf Lechtenfeld (@ Institute for Theoretical Physics)

• James Arthur Graduate Associate (JAGA) Fellow, Center for Cosmology and Particle Physics (CCPP), NYU, NY, USA: Fall 2021 – Spring 2022 (1 yr)
  - PhD advisor: Prof. Massimo Porrati

• Henry Mitchell MacCracken Fellow, Department of Physics, Graduate School of Arts and Sciences (GSAS), NYU, NY, USA: Fall 2017 – Spring 2021 (4 yrs)
  - PhD advisors: Profs. Massimo Porrati and Matthew Kleban

Honor and Award

• Travel Grant : Feb. 6th - 14th 2024,
  awarded by Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Japan

• Travel Grant : Dec. 6th - 13th 2023,
  awarded by Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Japan

• Riemann Fellowship : July, 2022 – Nov., 2022 (4 mths)
  awarded by Riemann Center for Geometry and Physics, Leibniz University Hannover, Germany

• James Arthur Graduate Associate (JAGA) Fellowship : Fall 2021 – Summer 2022 (1 yr)
  awarded by Center for Cosmology and Particle Physics (CCPP),  New York University, New York, NY, USA

• Henry Mitchell MacCracken Fellowship : Fall 2017 – Spring 2021 (4 yrs)
  awarded by Graduate School of Arts and Sciences (GSAS), New York University, New York, NY, USA

• Bachelor & Master Joint Program Scholarship : Fall 2010 – Fall 2011 (1.5 yrs)
  awarded by Graduate School, Yonsei University, South Korea

Academic Service

• Referee, Physical Review D (PRD) & Physical Review Letters (PRL) @ American Physical Society (APS): since Jan. 2024

• Referee, The European Physical Journal Plus (EPJP) @ European Physical Society (EPS): since Jul. 2023

• Referee, International Journal of Geometric Methods in Modern Physics (IJGMMP) @ World Scientific: since Feb. 2024

Outreach

• NMC Mentor, National Mentoring Community (NMC),  American Physical Society (APS): since Oct. 2023
  - Mentoring marginalized and minoritized undergraduate and graduate students to support them for their academic and career journeys in physics, supporting the values of Diversity, Equity, and Inclusion (DEI).

Invited Presentation

• Aug. 18~22, 2025. TBD.
  Invited talk @ CQUeST 2025 Workshop - Cosmology and Quantum Spacetime, Incheon, South Korea.

• June 29 ~ July 4, 2025,  "Traversable wormhole for strings but not for particles"
  Invited talk @ Gravity beyond Riemannian Paradigm 2025, Club ES Jeju Resort, Jeju Island, South Korea

• Aug. 7th, 2024. "Supermassive gauginos in supergravity inflation with high-scale SUSY breaking".
  Invited talk @ CQUeST 2024 Workshop - Cosmology and Quantum Spacetime, Busan, South Korea.

• June. 28th, 2024. "Inflationary cosmology in 4D N=1 conformal supergravity".
  Invited talk @ Department of Physics, Hanyang University, Seoul, South Korea.

• Apr. 5th, 2024. "Supergravity cosmology".
  Invited talk @ CQUeST, Sogang University, Seoul, South Korea.

• Feb. 13, 2024. “Towards the UV completion of modified gravity theories in conformal supergravity”.
  Invited poster presentation @ Nishinomiya-Yukawa Symposium "General Relativity and Beyond", YITP, Kyoto University, Japan.

• Dec. 7, 2023. “Discovery of a new geometric structure and its application to gauge theory”.
  Invited talk @ Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Japan.

• Sep. 21, 2022. “Realization of slow-roll inflation and the MSSM in supergravity theories with new FI terms”.
  Invited talk @ Riemann Center for Geometry and Physics, Leibniz University Hannover, Germany.

• Apr. 5, 2021. “Supergravity models of inflation, supersymmetry breaking, and de Sitter vacua”.
  Invited talk @ CCPP, New York University, NY, USA.

Invited Lecture

• Aug. 12th ~ 15th, 2024 (for 3 days). "Basics of Supersymmetry"
  Invited lecture @ The 2nd Hangang Workshop, CQUeST, Seoul, South Korea. 

Organization

• June 29 ~ July 4, 2025, Gravity beyond Riemannian Paradigm 2025
  Organizer @ Club ES Jeju Resort, Jeju Island, South Korea

Miscellaneous Experience

• Manuscript editor of JKPS, The Korean Physical Society, South Korea : Sep. 2016 – Jul. 2017 (10 mths)
  - The Journal of Korean Physical Society (JKPS) is a SCI journal covering all fields of theoretical and experimental physics.

• Commissioned officer (rank: 1st lieutenant), The Republic of Korea Air Force (ROKAF), South Korea : Mar. 2012 – Jun. 2015 (3.3 yrs)
  - commissioned via the ROKAF 128th Officer Training School (OTS) for the military service in my country.