Set the Night on FIRE: Building an Empirical Local Dark Matter Velocity Distribution

Posted by klaurent MIT

Kavli Affiliate: Lina Necib | Summary:The majority of terrestrial direct detection experiments for Dark Matter (DM) rely on the Standard Halo Model (SHM), which assumes the local DM velocity distribution follows a Maxwell-Boltzmann distribution. However, galaxy mergers can deposit DM that remains kinematically clustered today, inducing deviations from the smooth SHM prediction. Previous studies have […]


Continue.. Set the Night on FIRE: Building an Empirical Local Dark Matter Velocity Distribution

Interpretation of 21 cm Auto Power Spectrum Measurement at $zsim 1$ by the Canadian Hydrogen Intensity Mapping Experiment

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi Masui | Summary:Observations with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) have been used to measure the 21 cm intensity mapping auto power spectrum, at $zsim 1$, over a frequency range from 608.2 MHz to 707.8 MHz at wavenumbers $0.4~h~rm Mpc^-1 lesssim k lesssim 1.5~h~rm Mpc^-1$. In this paper, we present the […]


Continue.. Interpretation of 21 cm Auto Power Spectrum Measurement at $zsim 1$ by the Canadian Hydrogen Intensity Mapping Experiment

The Impact of Fuzzy Dark Matter Dynamics on the Accumulation and Fragmentation of Primordial Gas

Posted by klaurent Cambridge

Kavli Affiliate: George Efstathiou | Summary:Fuzzy Dark Matter (FDM), particularly in the $10^-22$ eV mass regime is frequently used to characterize wave-like interference effects. It exhibits macroscopic wave properties, which drive distinct baryonic dynamics within collapsed haloes. Using the hydrodynamical code AREPO with the AxiREPO module and primordial chemistry, we simulate the assembly of haloes […]


Continue.. The Impact of Fuzzy Dark Matter Dynamics on the Accumulation and Fragmentation of Primordial Gas

The Impact of Fuzzy Dark Matter Dynamics on the Accumulation and Fragmentation of Primordial Gas

Posted by klaurent Cambridge

Kavli Affiliate: George Efstathiou | Summary:Fuzzy Dark Matter (FDM), composed of ultra-light axions ($m_a sim 1 times 10^-22$ eV), exhibits wave-like properties that can significantly impact early-universe star formation. Using the arepo code with the axirepo module, we simulate the assembly of haloes across a range of axion masses ($1 times 10^-22$ eV $le m_a […]


Continue.. The Impact of Fuzzy Dark Matter Dynamics on the Accumulation and Fragmentation of Primordial Gas

What happens to wavepackets of fermions when scattered by the Maldacena-Ludwig wall?

Posted by klaurent Tokyo

Kavli Affiliate: Yuji Tachikawa | Summary:We study wavepackets of exotic excitations after two-dimensional fermions are scattered by the boundary condition constructed by Maldacena and Ludwig, which turns elementary excitations into exotic fractionally-charged objects. They are of interest in the s-wave approximation of the fermion-monopole scattering in four-dimensional QED and of the multi-channel Kondo effect. We […]


Continue.. What happens to wavepackets of fermions when scattered by the Maldacena-Ludwig wall?

High-Fidelity Quantum State Transfer in Multimode Resonators via Tunable Pulses

Posted by klaurent Delft

Kavli Affiliate: Simon Groblacher | Summary:Quantum state transfer between distant nodes is essential for distributed quantum information processing. Existing protocols are typically optimized for specific coupling regimes, such as adiabatic dark-state transfer in the single-mode limit and pitch-and-catch schemes in the multimode regime, leaving the crossover between them without a simple and unified control strategy. […]


Continue.. High-Fidelity Quantum State Transfer in Multimode Resonators via Tunable Pulses

Probabilistic Concept Graph Reasoning for Multimodal Misinformation Detection

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Multimodal misinformation poses an escalating challenge that often evades traditional detectors, which are opaque black boxes and fragile against new manipulation tactics. We present Probabilistic Concept Graph Reasoning (PCGR), an interpretable and evolvable framework that reframes multimodal misinformation detection (MMD) as structured and concept-based reasoning. PCGR follows a build-then-infer paradigm, which […]


Continue.. Probabilistic Concept Graph Reasoning for Multimodal Misinformation Detection

Harmonizing brain rhythms: cortex-wide neuronal dynamics underpin quasi-periodic patterns in resting-state fMRI

Posted by klaurent Yale

Kavli Affiliate: Stephen Strittmatter | Authors: Francesca Mandino, Xilin Shen, Corey Horien, Xenophon Papademetris, Stephen M. Strittmatter, Shella Keilholz, Nan Xu and Evelyn MR Lake | Summary: Functional magnetic resonance imaging (fMRI) captures whole-brain activity fluctuations non-invasively in humans and animals. Beyond task/stimuli-locked responses, fMRI measures large-scale patterned activity during rest. An established method for […]


Continue.. Harmonizing brain rhythms: cortex-wide neuronal dynamics underpin quasi-periodic patterns in resting-state fMRI

Spatial representation in CA1 superficial pyramidal cells is impaired after postnatal ablation of hippocampal Cajal Retzius cells

Posted by klaurent NTNU

Kavli Affiliate: Giulia Quattrocolo | Authors: Sachuriga, Kristian Moan, Keagan Dunville, Nina Seiffert, Ingvild Lynneberg Glaerum, Giulia Fiori and Giulia Quattrocolo | Summary: Cajal-Retzius neurons (CRs) are a transient cell type that populates the postnatal hippocampus. To test how the persistence of CRs shapes the maturation of hippocampal function, we used a CRs-specific transgenic mouse […]


Continue.. Spatial representation in CA1 superficial pyramidal cells is impaired after postnatal ablation of hippocampal Cajal Retzius cells

WTR: A Toolkit for Functional Anterograde Transsynaptic Circuit Mapping

Posted by klaurent UCSF

Kavli Affiliate: Xin Duan, Lily Jan | Authors: Tongfei A. Wang, Chao Chen, Ruogu Liu, Aijia Yi-Luo, Xiaoyan Cao, Jitao Hu, Shikang Guan, Si-yuan Chang, Xiaoli Cui, Wei Zhou, Fei Zhao, Chun-Teng Huang, Xin Duan and Lily Y. Jan | Summary: The brain coordinates animal physiology and behavior via neuronal circuits. To understand and simulate […]


Continue.. WTR: A Toolkit for Functional Anterograde Transsynaptic Circuit Mapping