Kavli Affiliate: Hitoshi Murayama | Summary:In this document we update the status of U.S. community inputs for the European Strategy for Particle Physics Update (ESPPU) since April 1, 2025, and offer responses to the revised questions. Major new inputs include a long-term strategy report from the National Academies of Sciences, Engineering, and Medicine and the […]
Kavli Affiliate: Yasunori Nomura | Summary:Recent developments in gravitational path integrals indicate that the nonperturbative physical Hilbert space of a closed universe is one-dimensional within each superselection sector. This raises a basic puzzle: how can a unique quantum-gravity state give rise to semiclassical physics, measurement outcomes, and classical probabilities? In this paper, we develop a […]
Kavli Affiliate: Eiichiro Komatsu | Summary:Simulation-based inference (SBI) is a powerful inference technique for cases where the exact functional form of the likelihood is not known. A prime example is the likelihood of cross-correlation power spectra of the cosmic microwave background (CMB) fields at low multipoles, $elllesssim 10$. In this paper, we investigate a parity-violating […]
Kavli Affiliate: John Silverman | Summary:High-$z$ quasars are believed to reside in massive dark matter haloes (DMHs), suggesting that they reside in galaxy overdense regions. However, previous observations have shown a range of environments around them. The previous targets are limited to bright quasars ($M_1450lesssim-25$), for which photoevaporation may hinder galaxy formation in their vicinity. […]
Kavli Affiliate: Masahiro Kawasaki | Summary:We numerically investigate stochastic dynamics in cosmology by solving Langevin equations for Infrared (IR) modes with stochastic noises generated by Ultraviolet (UV) modes at the coarse-graining scale. By construction, the stochastic formalism relies on the separation of scales, which requires solving the equations for UV modes on top of the […]
Kavli Affiliate: Masahiro Kawasaki | Summary:Recently, Subaru Hyper Suprime-Cam (HSC) observations found 12 candidates for microlensing events. These events can be explained by primordial black holes (PBHs) with masses of $10^-7$-$10^-6 M_odot$ and a fraction of all dark matter of $f_mathrmPBH = mathcalO(10^-1)$. In this paper, we consider the PBH production in two types of […]
Kavli Affiliate: Yukinobu Toda | Summary:In our previous paper with Tudor Pădurariu, we introduced the notion of limit categories for moduli stacks of Higgs bundles and formulated the Dolbeault geometric Langlands correspondence. These limit categories are expected to provide an effective “classical limit” of the categories of D-modules on the moduli stack of bundles, and […]
Kavli Affiliate: Masahiro Takada | Summary:We present updated microlensing analysis results based on high-cadence ($sim$2~min) Subaru Hyper Suprime-Cam (HSC) observations of the Andromeda Galaxy (M31) in 2014, 2017, and 2020, yielding a total of 39.3 hours of data. We use a point-lens finite-source model for the microlensing light curve model and employ multi-stage selection procedures […]
Kavli Affiliate: Tomotake Matsumura | Summary:We present millimeter and sub-millimeter room temperature transmission and loss measurements of 3D printed alumina disc and of a disc with one-sided 3D printed sub-wavelength structures anti-reflection coatings (SWS-ARC). For four bands spanning 158 – 700~GHz we find an index of refraction consistent with $n= 3.107 pm 0.007$. The loss […]
Kavli Affiliate: Alexey Bondal | Summary:In this paper we present criteria in terms of dual pairs of exceptional sequences for an abelian category to be highest weight. The criteria are applied in three situations of geometric origin. We give new proofs for the facts that the category of perverse sheaves of middle perversity on complex-analytic […]