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날짜 2024-05-01 16:00 
일시 May 1 (Wed), 4 PM 
장소 E6-2 #2502 
연사 Prof. Jeong Han Kim (Chungbuk National University) 

We are happy to announce the High Energy Theory Seminar this week by Prof. Jeong Han Kim from Chungbuk National University.

We welcome everyone to join.

Speaker: Prof. Jeong Han Kim (Chungbuk National University)
Time: May 1 (Wed) at 4 PM
Place: E6-2 #2502

Title: Across the Mass Spectrum: Utilizing Small-Scale Structures to Probe Dark Matters

Abstract: The cosmological data from a small-scale astrophysical structure and future gravitational wave (GW) experiments hold great promise in shedding light on the nature of dark matter (DM). First, we explore MeV-scale two-component DMs with a sizable mass splitting and self-interaction for a light component. By delving into temperature evolution, density perturbation, and N-body simulation, we find that the annihilation of the heavier components to the lighter ones effectively endows the latter with warm DM-like behavior. It takes advantage of all the distinct features that warm DM offers without observational mass constraints on the warm DM masses. Second, we explore a black hole binary system in the presence of the ultralight self-interacting scalar DM and corresponding GW signals. The dense region of DM can lead to the dephasing of gravitational waveforms, which can be detected by upcoming experiments such as LISA.


Further information about the future/past HET seminar can be found here: https://het.kaist.ac.kr/seminar

번호 날짜 장소 제목
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282 2022-10-26 10:00  E6-2 #2502  Replica Higher-Order Topology of Hofstadter Butterflies in Twisted Bilayer Graphene
281 2024-03-20 16:00  E6-2 #2502  [High-Energy Theory Seminar] Black hole states at finite N
» 2024-05-01 16:00  E6-2 #2502  [High Energy Theory Seminar] Across the Mass Spectrum: Utilizing Small-Scale Structures to Probe Dark Matters
279 2022-08-08 14:00  E6-2 #2502  Classical Shadow Tomography for Analog Quantum Simulators
278 2024-05-16 14:30  E6-2 #2502 & Zoom  [Astrophysics Seminar] Observational Cosmology with Superconducting Sensors
277 2020-11-12 16:00  E6-2 1323  2020 가을학기 광학분야 특별세미나
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273 2023-11-23 16:00  E6-2(Natural Science B/D). 1st fl. #1323  Deciphering the Enigma of Quantum Materials by X-ray Scattering and Spectroscopy
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271 2023-11-09 16:00  E6-2(Natural Science B/D). 1st fl. #1323  Assessing the Capability of Near-Term Photonic Devices Towards Quantum Supremacy
270 2023-09-18 11:00  E6-2, #1322  Magic polarisation trapping of polar molecules for tunable dipolar interactions file
269 2023-03-02 11:00  E6-2, #1322  Probing Anomalies of Non-Invertible Symmetries with Symmetry TFTs
268 2023-11-30 10:30  E6-2, #1322  [High-Energy Theory Seminar] 3d-3d correspondence and 2d N = (0,2) boundary conditions
267 2023-08-23 16:00  E6-2, #1322  [High Energy Theory Seminar] A spacetime tensor network for AdS3/CFT2
266 2019-06-28 14:00  E6-2, #1322  1st Research-exchange meeting of computational material physics file
265 2024-05-16 16:00  E6-2, #1323  [High Energy Theory Seminar] Conformal Collider Physics
264 2024-06-13 16:00  E6-2, #1323  Magnonic $\varphi$ Josephson junction and its non-Hermitian Josephson diode effect