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IBS CTPU-CGA 2025 Summer School and Workshop for High Energy Physics and Cosmology in Korea

July 28, 2025 to August 1, 2025
Jeonju, Best Western Hotel
Asia/Seoul timezone

Session

100

Jul 29, 2025, 4:50 PM
Jeonju, Best Western Hotel

Jeonju, Best Western Hotel

http://www.bwplusjeonju.com/

Presentation materials

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  1. 16. A photon cloud induced from an axion cloud
    Zi-Yu Tang (IBS CTPU-CGA)
    7/29/25, 4:50 PM
  2. 17. Signatures of Primordial Gravitational Waves on the Large-Scale Structure of the Universe.
    Pritha Bari (IBS CTPU-CGA)
    7/29/25, 5:15 PM

    Primordial gravitational waves (GWs), beyond their direct detection prospects, can induce second-order scalar perturbations. These tensor-induced scalar modes evolve similarly to standard matter perturbations and leave distinct imprints on the large-scale structure (LSS). In this talk, I will present a detailed study of these effects, including analytical results for the evolution of induced...

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  3. 18. Superradiant Bosons Driving Supermassive Black Hole Mergers
    Huiyu Zhu (IBS CTPU-CGA)
    7/29/25, 5:40 PM

    Ultralight bosons, predicted in scenarios beyond the Standard Model and viable dark matter (DM)
    Candidates can form superradiant clouds around spinning black holes, influencing their dynamics.
    Using century-long monitored OJ287 supermassive black hole binary, we set the first DM–DM-independent,
    dynamical constraints on their masses μ = (8.5−22)×10−22 eV. These dynamical constraints,...

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  4. 19. Ultra-Light Dark Matter and its Dynamical Friction
    Hyeonmo Koo (U of Seoul)
    7/29/25, 6:05 PM
  5. 27. Searching for Dark Neighbors: DL-based local DM density estimation in sub-kpc scale
    Yigon Kim (SNU)
    7/31/25, 4:50 PM
  6. 28. Constraining the Dark Energy Equation of State with the Extended Alcock–Paczyński test
    Minseong Kwon (SNU)
    7/31/25, 5:15 PM
  7. 29. Realizing Non-Singular Cosmologies within Horndeski Gravity
    Pavel Petrov (IBS CTPU-CGA)
    7/31/25, 5:40 PM

    We present a minimal setup within the framework of Horndeski gravity that describes a nonpathological Genesis scenario. Our setup allows for a fully stable transition to the kination epoch, during which General Relativity (GR) is restored. This Genesis scenario circumvents the no-go theorem, albeit at the cost of encountering the risk of strong coupling in the past. Interestingly, our scenario...

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  8. 30. Primordial Black Hole: Future Perspective in Gravitational Wave Astronomy
    Qianhang Ding (IBS CTPU-CGA)
    7/31/25, 6:05 PM
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