Kavli Affiliate: Masahito Yamazaki | Summary:Given a quiver Q with gauge dimension $bf v$ and framing dimension $bf w$, one can define the extended quiver variety $widetildemathcal M(mathbf v,mathbf w)$, which is a smooth family of deformations of the Nakajima quiver variety $mathcal M(mathbf v,mathbf w)$. In this paper we discuss two vertex algebras which […]
Kavli Affiliate: David Spergel | Summary:Agentic artificial intelligence (AI) systems are beginning to assist, accelerate, and partially automate scientific discovery, performing tasks that span literature synthesis, code generation, data analysis, hypothesis proposal, and model criticism. We argue that this transition is qualitative rather than incremental, and that suitably designed multi-agent systems may evolve from passive […]
Kavli Affiliate: Tomotake Matsumura | Summary:TIFUUN (THz Integral Field Units with Universal Nanotechnology) is an ultra-wideband mm-submm wave imaging spectrometer that capitalizes on the highly scalable integrated superconducting spectrometer technology. TIFUUN has two slots for integral field units (IFUs), which can jointly be optimized as open-hardware for each astronomical observation in terms of spatial and […]
Kavli Affiliate: Hitoshi Murayama | Summary:We present a minimal dark matter scenario: a single complex scalar carrying baryon and lepton number, with no new exact stabilizing symmetry. Its leading interaction is a dimension-7 semileptonic portal that, below confinement, generates a low-energy Yukawa coupling with the proton and electron. Requiring absolute stability of both the proton […]
Kavli Affiliate: Naoyuki Tamura | Summary:The paper presents the science operation framework for Prime Focus Spectrograph (PFS or ‘Onohi’ula in its Hawaiian name) installed at the 8.2m Subaru Telescope on the summit of Maunakea. PFS is a massively multiplexed, wide-field, fiber-fed spectrograph covering 1.25 square degrees with 2386 science fibers. The instrument has been offered […]
Kavli Affiliate: Kunio Inoue | Summary:Geoneutrinos, electron antineutrinos produced by radioactive decays of heat-producing elements (HPEs) within the Earth, provide unique insights into Earth’s interior and heat budget since their first detection in 2005 by KamLAND. Conventional geoneutrino detectors currently provide integrated global information and lack the capability to spatially resolve structures deep within the […]
Kavli Affiliate: Misao Sasaki | Summary:Evaporating black holes can leave distinct imprints on gravitational wave (GW) backgrounds. We show that black hole populations with finite width mass distributions exhibit a universal late time evolution governed by the evaporation dynamics rather than the details of the initial mass distribution, leading to a characteristic power law suppression […]
Kavli Affiliate: Todor Milanov | Summary:We prove that the Gromov–Witten invariants of the elliptic orbifold lines $mathbfP^1_3,3,3$, $mathbfP^1_2,4,4$, and $mathbfP^1_2,3,6$ satisfy a certain system of Hirota Quadratic (or Bilinear) Equations. Our result is the analogue of the so-called Toda conjecture in the Gromov-Witten theory of $mathbfP^1$ or more precisely its non-extended version. A new feature […]
Kavli Affiliate: Hitoshi Murayama | Summary:We point out that ultra-peripheral Au+Au collision data collected at the Relativistic Heavy Ion Collider, operational during 2000-2026, can be used to search for axion-like particles coupled to photons via the resonant process $γγto a to γγ$. Exploiting the $Z^4$ enhancement of the two-photon luminosity in heavy-ion collisions and the […]
Kavli Affiliate: Eiichiro Komatsu | Summary:The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is a wide-field, integral-field spectroscopic survey designed to map the large-scale distribution of Lyman-alpha emitting galaxies (LAEs) at 1.88 < z < 3.52 and constrain dark energy at cosmic noon. Using the 10-m Hobby-Eberly Telescope and the Visible Integral-Field Replicable Unit (IFU) Spectrograph, […]