February 2025 – Kavli Institute Pre-Print Publications

COSMOS Spectroscopic Redshift Compilation (First Data Release): 488k Redshifts Encompassing Two Decades of Spectroscopy

Posted by klaurent February 28, 2025Peking

Kavli Affiliate: Yingjie Peng | Summary:We present the COSMOS Spectroscopic Redshift Compilation encompassing ~ 20 years of spectroscopic redshifts within a 10 deg$^2$ area centered on the 2 deg$^2$ COSMOS legacy field. This compilation contains 487,666 redshifts of 266,284 unique objects from 138 individual observing programs up to $z sim 8$ with median stellar mass […]

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The THESAN-ZOOM project: Burst, quench, repeat — unveiling the evolution of high-redshift galaxies along the star-forming main sequence

Posted by klaurent February 28, 2025MIT

Kavli Affiliate: Mark Vogelsberger | Summary:Characterizing the evolution of the star-forming main sequence (SFMS) at high redshift is crucial to contextualize the observed extreme properties of galaxies in the early Universe. We present an analysis of the SFMS and its scatter in the THESAN-ZOOM simulations, where we find a redshift evolution of the SFMS normalization […]

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MatLLMSearch: Crystal Structure Discovery with Evolution-Guided Large Language Models

Posted by klaurent February 28, 2025Berkeley

Kavli Affiliate: Kristin Persson | Summary:Crystal structure generation is fundamental to materials science, enabling the discovery of novel materials with desired properties. While existing approaches leverage Large Language Models (LLMs) through extensive fine-tuning on materials databases, we show that pre-trained LLMs can inherently generate novel and stable crystal structures without additional fine-tuning. Our framework employs […]

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MatLLMSearch: Crystal Structure Discovery with Evolution-Guided Large Language Models

Posted by klaurent February 28, 2025Berkeley

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Jingru Gan, Jingru Gan, , , | Summary: Crystal structure generation is fundamental to materials science, enabling the discovery of novel materials with desired properties. While existing approaches leverage Large Language Models (LLMs) through extensive fine-tuning on materials databases, we show that pre-trained LLMs can inherently […]

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Large Language Models Are Innate Crystal Structure Generators

Posted by dbos February 28, 2025Berkeley

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Jingru Gan, Peichen Zhong, Yuanqi Du, Yanqiao Zhu, Chenru Duan | Summary: Crystal structure generation is fundamental to materials discovery, enabling the prediction of novel materials with desired properties. While existing approaches leverage Large Language Models (LLMs) through extensive fine-tuning on materials databases, we show that […]

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The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars

Posted by klaurent February 28, 2025Peking

Kavli Affiliate: Kejia Lee | Summary:We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at 1.25 GHz with a raw bandwidth of 500 MHz. Due to the high sensitivity ($sim$16 K/Jy) of the FAST […]

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The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars

Posted by dbos February 28, 2025Peking

Kavli Affiliate: Renxin Xu | First 5 Authors: Jiangwei Xu, Jinchen Jiang, Heng Xu, Bojun Wang, Zihan Xue | Summary: We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at 1.25 GHz with a […]

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The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars

Posted by dbos February 28, 2025Peking

Kavli Affiliate: Kejia Lee | First 5 Authors: Jiangwei Xu, Jinchen Jiang, Heng Xu, Bojun Wang, Zihan Xue | Summary: We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at 1.25 GHz with a […]

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The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars

Posted by dbos February 28, 2025Peking

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Probing inflationary gravitational waves with cross-correlations: improved forecasting and validation with simulations

Posted by klaurent February 28, 2025Cambridge

Kavli Affiliate: Blake Sherwin | Summary:We present a follow-up study to the method recently proposed by Namikawa and Sherwin (2023) to probe gravitational waves using cross-correlations between two cosmic microwave background (CMB) $B$-modes and a large-scale structure tracer. We first improve on the previous forecast by including the impact of CMB component separation and find […]

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