CTPU Joint Tea Time (6th)
Monday, 20 October 2025 -
10:30
Monday, 20 October 2025
10:30
Spontaneous Scalarization and its Application to the Holographic QCD Theory
-
Hong Guo
(
IBS CTPU-PTC
)
Spontaneous Scalarization and its Application to the Holographic QCD Theory
Hong Guo
(
IBS CTPU-PTC
)
10:30 - 11:00
Room: B438
I would like to briefly introduce the phenomenon of spontaneous scalarization of black holes, which provides a new mechanism to evade the no-hair theorem. Within a simplified Einstein–Maxwell–Dilaton (EMD) framework, we have investigated the scalarization of Reissner–Nordström black holes. In this model, two types of hairy black hole solutions can be identified: one induced by the scalar potential and another arising from non-minimal coupling. I will show that the improved EMD model, which indicates a first-order QCD phase transition, can be understood in terms of the transition between these two classes of hairy black hole states.
11:00
Discussion
Discussion
11:00 - 11:15
Room: B438
11:15
Extra Dimension and 4D Effective Theory
-
Yusuke Yamada
(
IBS CTPU-CGA (YSF)
)
Extra Dimension and 4D Effective Theory
Yusuke Yamada
(
IBS CTPU-CGA (YSF)
)
11:15 - 11:45
Room: B438
I will briefly introduce the higher dimensional spacetime theory and how our 4D spacetime effectively emerges from it. Then, I discuss the possibility of the production of Kaluza-Klein particles in the early universe, which may become super heavy dark matter.
11:45
Discussion
Discussion
11:45 - 12:00
Room: B438
12:00
Tea Time with light meal
Tea Time with light meal
12:00 - 13:30
Room: B438