Production of Iodine Isotopes via Ultra-intense Laser Driven Photonuclear Reactions

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Weifu Yin, Weifu Yin, , , | Summary: The investigation and production of proton-rich iodine isotopes predominantly rely on conventional accelerator-based methods, typically requiring prolonged irradiation periods to measure or achieve quantifiable yields for isotopic isolation. Bremsstrahlung radiation sources generated by high-power laser-plasma-accelerated electron beams with ultrahigh […]


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XRISM Pre-Pipeline and Singularity: Container-Based Data Processing for the X-Ray Imaging and Spectroscopy Mission and High-Performance Computing

Posted by klaurent MIT

Kavli Affiliate: Eric D. Miller | First 5 Authors: Satoshi Eguchi, Satoshi Eguchi, , , | Summary: The X-Ray Imaging and Spectroscopy Mission (XRISM) is the seventh Japanese X-ray observatory whose development and operation are in collaboration with universities and research institutes in Japan, the United States, and Europe, including JAXA, NASA, and ESA. The […]


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Beyond the Dot: an LRD-like nucleus at the Heart of an IR-Bright Galaxy and its implications for high-redshift LRDs

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Pierluigi Rinaldi, Pierluigi Rinaldi, , , | Summary: Little Red Dots (LRDs) are compact, red sources discovered by JWST at high redshift ($z gtrsim 4$), marked by distinctive "V-shaped" spectral energy distributions (SEDs) and often interpreted as rapidly accreting AGNs. Their evolution remains unclear, as identifying counterparts […]


Continue.. Beyond the Dot: an LRD-like nucleus at the Heart of an IR-Bright Galaxy and its implications for high-redshift LRDs

Towards Greater Leverage: Scaling Laws for Efficient Mixture-of-Experts Language Models

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Changxin Tian, Changxin Tian, , , | Summary: Mixture-of-Experts (MoE) has become a dominant architecture for scaling Large Language Models (LLMs) efficiently by decoupling total parameters from computational cost. However, this decoupling creates a critical challenge: predicting the model capacity of a given MoE configurations (e.g., expert […]


Continue.. Towards Greater Leverage: Scaling Laws for Efficient Mixture-of-Experts Language Models

Towards Greater Leverage: Scaling Laws for Efficient Mixture-of-Experts Language Models

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Changxin Tian, Changxin Tian, , , | Summary: Mixture-of-Experts (MoE) has become a dominant architecture for scaling Large Language Models (LLMs) efficiently by decoupling total parameters from computational cost. However, this decoupling creates a critical challenge: predicting the model capacity of a given MoE configurations (e.g., expert […]


Continue.. Towards Greater Leverage: Scaling Laws for Efficient Mixture-of-Experts Language Models

WSM: Decay-Free Learning Rate Schedule via Checkpoint Merging for LLM Pre-training

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Changxin Tian, Changxin Tian, , , | Summary: Recent advances in learning rate (LR) scheduling have demonstrated the effectiveness of decay-free approaches that eliminate the traditional decay phase while maintaining competitive performance. Model merging techniques have emerged as particularly promising solutions in this domain. We present Warmup-Stable […]


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Explicit Formulas for Estimating Trace of Reduced Density Matrix Powers via Single-Circuit Measurement Probabilities

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: , , , , | Summary: In the fields of quantum mechanics and quantum information science, the traces of reduced density matrix powers play a crucial role in the study of quantum systems and have numerous important applications. In this paper, we propose a universal framework to […]


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Mapple: A Domain-Specific Language for Mapping Distributed Heterogeneous Parallel Programs

Posted by klaurent Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Anjiang Wei, Anjiang Wei, , , | Summary: Optimizing parallel programs for distributed heterogeneous systems remains a complex task, often requiring significant code modifications. Task-based programming systems improve modularity by separating performance decisions from core application logic, but their mapping interfaces are often too low-level. In this […]


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Variable X-ray reverberation in the rapidly accreting AGN Ark 564: the response of the soft excess to the changing geometry of the inner accretion flow

Posted by klaurent Stanford

Kavli Affiliate: Steven W. Allen | First 5 Authors: Zhefu Yu, Zhefu Yu, , , | Summary: X-ray reverberation, which exploits the time delays between variability in different energy bands as a function of Fourier frequency, probes the structure of the inner accretion disks and X-ray coronae of active galactic nuclei. We present a systematic […]


Continue.. Variable X-ray reverberation in the rapidly accreting AGN Ark 564: the response of the soft excess to the changing geometry of the inner accretion flow

Stellar Mass-Dispersion Measure Correlations Constrain Baryonic Feedback in Fast Radio Burst Host Galaxies

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Calvin Leung, Calvin Leung, , , | Summary: Low redshift fast radio bursts (FRBs) provide robust measurements of the host-galaxy contribution to the dispersion measure (DM), which can constrain the circumgalactic medium (CGM) of the hosts. We curate a sample of 20 nearby FRBs with low […]


Continue.. Stellar Mass-Dispersion Measure Correlations Constrain Baryonic Feedback in Fast Radio Burst Host Galaxies