Name: Dark matter and black holes
Start: 2025-12-01T08:00:00+09:00
End: 2025-12-05T18:00:00+09:00
Location: Kavli IPMU

Dark matter and black holes

from Monday, December 1, 2025 (8:00 AM) to Friday, December 5, 2025 (6:00 PM)

Monday, December 1, 2025

9:00 AM Registration
Registration
9:00 AM - 9:30 AM
Room: Lecture Hall

9:30 AM Coffee break/Discussion
Coffee break/Discussion
9:30 AM - 9:50 AM
Room: Lecture Hall

9:50 AM

9:50 AM - 10:00 AM
Room: Lecture Hall
10:00 AM
10:00 AM - 11:00 AM
Room: Lecture Hall
Contributions

10:00 AM Conservative Thoughts on Black Holes - Surjeet Rajendran

10:30 AM The Origin of Supermassive Black Holes from Pop III.1 Seeds and Implications for Particle Physics and Cosmology - Jonathan Tan
11:00 AM

11:00 AM - 11:20 AM
Room: Lecture Hall
11:20 AM
11:20 AM - 12:20 PM
Room: Lecture Hall
Contributions

11:20 AM Searches for dark sector particles at Belle and Belle II - Sourav Dey

11:40 AM Finding Macroscopic Dark Matter - Zachary Picker

12:00 PM Fermionic freeze-in from flavon portal - Nandini Das
12:20 PM Lunch
Lunch
12:20 PM - 2:30 PM
Room: Lecture Hall
2:30 PM
2:30 PM - 3:00 PM
Room: Lecture Hall
Contributions

2:30 PM Verifying primordial black holes as dark matter by mergers, evaporation, and occasionally the memory burden effect - Kazunori Kohri
3:00 PM Coffee break
Coffee break
3:00 PM - 3:30 PM
Room: 3rd floor
3:30 PM
3:30 PM - 4:30 PM
Room: Lecture Hall
Contributions

3:30 PM Bosonic dark matter dynamics in neutron stars - Deep Ghosh

3:50 PM A Dark Matter Probe in Accreting Pulsar–Black Hole Binaries - Ali Akil

4:10 PM Dark matter spikes with strongly self-interacting particles - Takashi Toma
Tuesday, December 2, 2025

9:30 AM Coffee break/Discussion
Coffee break/Discussion
9:30 AM - 10:00 AM
Room: Lecture Hall
10:00 AM
10:00 AM - 11:00 AM
Room: Lecture Hall
Contributions

10:00 AM Supermassive Stars: evading (temporarily!) the inevitable with Dark Matter - George Fuller

10:30 AM Dark Matter and the Formation of Direct Collapse Supermassive Black Holes - Yifan Lu
11:00 AM

11:00 AM - 11:20 AM
Room: Lecture Hall
11:20 AM
11:20 AM - 12:20 PM
Room: Lecture Hall
Contributions

11:20 AM 20 GeV halo-like gamma-ray excess: dark matter annihilation? - Tomonori Totani

11:50 AM Vacuum relics in ultra-slow-roll inflation - Albert Escrivà
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
2:00 PM
2:00 PM - 3:00 PM
Room: Lecture Hall
Contributions

2:00 PM LVK O4a Constraints on Primordial Black Holes - Sachiko Kuroyanagi

2:30 PM Planck relics as dark matter - Stefano Profumo
3:00 PM Coffee break
Coffee break
3:00 PM - 3:30 PM
Room: 3rd floor
3:30 PM
3:30 PM - 4:30 PM
Room: Seminar Room A
Contributions

3:30 PM Exotic defect dynamics in axion cosmology - Yu Komiya

3:50 PM PBHs and Dark Matter Regurgitation from First Order Phase Transitions - Philip Lu

4:10 PM BSM-enhanced PBH Dark Matter - Xavier Pritchard
4:30 PM

4:30 PM - 5:30 PM
Room: Lecture Hall
Wednesday, December 3, 2025

9:30 AM

9:30 AM - 12:00 PM
Room: Lecture Hall

12:00 PM Lunch break
Lunch break
12:00 PM - 2:00 PM

3:00 PM IPMU tea time
IPMU tea time
3:00 PM - 3:30 PM
Room: 3rd floor
Thursday, December 4, 2025

9:30 AM Coffee break/Discussion
Coffee break/Discussion
9:30 AM - 10:00 AM
Room: Lecture Hall
10:00 AM
10:00 AM - 11:00 AM
Room: Lecture Hall
Contributions

10:00 AM The role of dark matter in the origin and dynamical evolution of massive black binaries towards the LISA band - Lucio Mayer

10:30 AM TBA - John Silverman
11:00 AM

11:00 AM - 11:20 AM
Room: Lecture Hall
11:20 AM
11:20 AM - 12:20 PM
Room: Lecture Hall
Contributions

11:20 AM Primordial Black Hole formation from power spectrum with finite width - Jianing Wang

11:40 AM When Tiny Halos Stir Spacetime: Gravitational Waves from the Fifth Forces - Xinpeng Wang

12:00 PM Exploring Ultra-Slow-Roll Inflation in Composite Pseudo-Nambu–Goldstone Boson Models: Implications for Primordial Black Holes and Gravitational Waves - Marco Merchand Medina
12:20 PM Group photo
Group photo
12:20 PM - 12:30 PM
Room: Lecture Hall

12:30 PM Lunch break
Lunch break
12:30 PM - 2:00 PM
2:00 PM
2:00 PM - 3:00 PM
Room: Lecture Hall
Contributions

2:00 PM Evaporating black holes: how the burden of their memory stabilizes them - Michael Zantedeschi

2:30 PM Seeding Supermassive Black Holes from the Dark Sector - Haibo Yu
3:00 PM Coffee break
Coffee break
3:00 PM - 3:30 PM
Room: 3rd floor
3:30 PM
3:30 PM - 4:30 PM
Room: Lecture Hall
Contributions

3:30 PM Primordial black holes from inflation and their observational imprints (online) - Rajeev Kumar Jain

3:50 PM The trichotomy of PBH initial conditions - Laia Montellà

4:10 PM Primordial black hole formation from the merger of oscillons - Naoya Kitajima
Friday, December 5, 2025

9:30 AM Coffee break / Discussion
Coffee break / Discussion
9:30 AM - 10:00 AM
Room: Lecture Hall
10:00 AM
10:00 AM - 11:00 AM
Room: Lecture Hall
Contributions

10:00 AM Observational search of PBH - Masahiro Takada Sunao Sugiyama
11:00 AM Coffee break
Coffee break
11:00 AM - 11:20 AM
Room: Lecture Hall
11:20 AM
11:20 AM - 12:20 PM
Room: Lecture Hall
Contributions

11:20 AM Discovery of a Little Red Dot candidate at z ~ 10 - Takumi Tanaka

11:40 AM Neutrino signals from Dark Stars seeding SMBHs - Thomas Schwemberger

12:00 PM Revisiting the merger rate of primordial black holes - Shunsuke Neda
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
2:00 PM
2:00 PM - 3:00 PM
Room: Lecture Hall
Contributions

2:00 PM Sub-GeV dark matter detection around SMBH. - Shigeki Matsumoto

2:30 PM Dark matter around black holes: tracing spikes - Shunsaku Horiuchi
3:00 PM

3:00 PM - 3:05 PM
Room: Lecture Hall

3:05 PM IPMU tea time
IPMU tea time
3:05 PM - 4:05 PM
Room: 3rd floor

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