Strangeon Matter: from Stars to Nuggets

Kavli Affiliate: Renxin Xu | First 5 Authors: Haoyang Qi, Haoyang Qi, , , | Summary: The fact that strange sea quarks are abundant in the nucleons, but without strangeness, is of great importance for understanding the nature of dense matter condensed by the strong interaction, particularly in the context of the “gigantic nucleus” formed […]


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DistFlow: A Fully Distributed RL Framework for Scalable and Efficient LLM Post-Training

Kavli Affiliate: Feng Yuan | First 5 Authors: Zhixin Wang, Zhixin Wang, , , | Summary: Reinforcement learning (RL) has become the pivotal post-training technique for large language model. Effectively scaling reinforcement learning is now the key to unlocking advanced reasoning capabilities and ensuring safe, goal-aligned behavior in the most powerful LLMs. Mainstream frameworks usually […]


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Updated Masses for the Gas Giants in the Eight-Planet Kepler-90 System Via Transit-Timing Variation and Radial Velocity Observations

Kavli Affiliate: Avi Shporer | First 5 Authors: David E. Shaw, David E. Shaw, , , | Summary: The eight-planet Kepler-90 system exhibits the greatest multiplicity of planets found to date. All eight planets are transiting and were discovered in photometry from the NASA Kepler primary mission. The two outermost planets, g ($P_g$ = 211 […]


Continue.. Updated Masses for the Gas Giants in the Eight-Planet Kepler-90 System Via Transit-Timing Variation and Radial Velocity Observations

Dwarf Galaxies at Cosmic Noon: New JWST Constraints on Satellite Models and Subhalo Tidal Evolution

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Jenny T. Wan, Jenny T. Wan, , , | Summary: The advent of JWST has revolutionized the study of faint satellite galaxies at $z gtrsim 1$, enabling statistical constraints on galaxy evolution and the galaxy$-$halo connection in a previously unexplored mass and redshift regime. We compare […]


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The Power of Architecture: Deep Dive into Transformer Architectures for Long-Term Time Series Forecasting

Kavli Affiliate: Zhuo Li | First 5 Authors: Lefei Shen, Lefei Shen, , , | Summary: Transformer-based models have recently become dominant in Long-term Time Series Forecasting (LTSF), yet the variations in their architecture, such as encoder-only, encoder-decoder, and decoder-only designs, raise a crucial question: What Transformer architecture works best for LTSF tasks? However, existing […]


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Supersonic Turbulence in Primordial Halos: A Comparison With and Without The Stream Velocity

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Avi Chen, Avi Chen, , , | Summary: Turbulence plays a critical role in regulating star formation in molecular clouds and is also observed in simulations of primordial halos that host Population III (Pop III) stars. The relative velocity between baryons and dark matter at the time […]


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Agentar-DeepFinance-300K: A Large-Scale Financial Dataset via Systematic Chain-of-Thought Synthesis Optimization

Kavli Affiliate: Lihong Wang | First 5 Authors: Xiaoke Zhao, Xiaoke Zhao, , , | Summary: Recent advancements in large language models (LLMs) have demonstrated remarkable general reasoning capabilities, holding significant potential for applications in the financial domain, a field that requires robust and reliable reasoning. It has been demonstrated that distilling high-quality chain-of-thought (CoT) […]


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Robust Beamforming Design for Secure Near-Field ISAC Systems

Kavli Affiliate: Feng Wang | First 5 Authors: Ziqiang CHen, Ziqiang CHen, , , | Summary: This letter investigates the robust beamforming design for a near-field secure integrated sensing and communication (ISAC) system with multiple communication users (CUs) and targets, as well as multiple eavesdroppers. Taking into account the channel uncertainty constraints, we maximize the […]


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NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)

Kavli Affiliate: Aaron Roodman | First 5 Authors: Colin Orion Chandler, Colin Orion Chandler, , , | Summary: We report on the observation and measurement of astrometry, photometry, morphology, and activity of the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS), with the NSF-DOE Vera C. Rubin Observatory. The third interstellar object, comet 3I/ATLAS, was […]


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The Physical Origin and Time Lag of Multi-Frequency Flares from SgrA*

Kavli Affiliate: Feng Yuan | First 5 Authors: Hong-Xuan Jiang, Hong-Xuan Jiang, , , | Summary: Sagittarius~A$^*$, the supermassive black hole at the center of our galaxy, exhibits flares across various wavelengths, yet their origins remain elusive. We performed 3D two-temperature General Relativistic Magnetohydrodynamic (GRMHD) simulations of magnetized accretion flows initialized from multi-loop magnetic field […]


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