CQUeST 2026 Workshop on Cosmology and Quantum Spacetime

Session

Session2-Thu

Jul 23, 2026, 1:30 PM

Babuda Ballroom, 4F, Ocean tower (St. John's Hotel, Gangneung)

Contribution list Timetable

23. Scalarized extremal black holes

Dr Yun Soo MYUNG (CQUeST, Sogang University)

7/23/26, 1:30 PM

We study scalarized extremal black holes in the Einstein-Maxwell-scalar theory with two different scalar couplings to two U(1) fields. This theory is inspired by the bosonic sector of N=4 supergravity. Two scalarzied extremal black holes are found with constant secondary scalar hair. We confirm that these are exactly obtained from the standard scalarization and entropy function...

24. Fortuity and relevant deformation

Mr Seunggyu Kim (KAIST)

7/23/26, 2:00 PM

We investigate the supercharge cohomology of an N=1 relevant deformation of N=4 super Yang-Mills. By introducing a field redefinition, we integrate out massive fields in a cohomological sense. Then, we construct the monotone cohomologies corresponding to the Kaluza-Klein particles of the dual supergravity solution. Some of the monotone cohomologies obey stringy exclusion principle analogous to...

25. Large N Universality of 4d N=1 SCFTs with Simple Gauge Groups

Mr Minseok Cho (KAIST)

7/23/26, 2:30 PM

We classify 4d N=1 superconformal field theories arising from asymptotically free simple gauge theories that admit a large N limit, finding 35 families that organize into three universal types according to their large N behavior of central charges. Using this landscape, we test the AdS Weak Gravity Conjecture: the original bound can fail, but a modified bound based on the supersymmetric Cardy...

26. Black hole microstates

Mr Jehyun Lee (Seoul National University)

7/23/26, 3:00 PM

I discuss the recent progress on the microstates of the supersymmetric AdS black holes under the AdS/CFT framework. In detail, I will discuss the possible black hole microstates in AdS5 from its dual four dimensional maximal Super-Yang-Mills theory.