March 2025 – Page 6 – Kavli Institute Pre-Print Publications

Testing small-scale modifications in the primordial power spectrum with Subaru HSC cosmic shear, primary CMB and CMB lensing

Posted by klaurent March 26, 2025Tokyo

Kavli Affiliate: Masahiro Takada | Summary:Different cosmological probes, such as primary cosmic microwave background (CMB) anisotropies, CMB lensing, and cosmic shear, are sensitive to the primordial power spectrum (PPS) over different ranges of wavenumbers. In this paper, we combine the cosmic shear two-point correlation functions measured from the Subaru Hyper Suprime-Cam (HSC) Year 3 data […]

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Survey of Disaggregated Memory: Cross-layer Technique Insights for Next-Generation Datacenters

Posted by klaurent March 26, 2025Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jing Wang, Chao Li, Taolei Wang, Jinyang Guo, Hanzhang Yang | Summary: The growing scale of data requires efficient memory subsystems with large memory capacity and high memory performance. Disaggregated architecture has become a promising solution for today’s cloud and edge computing for its scalability and elasticity. […]

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Magnetic phase diagram of Cr2Te3 revisited by ac magnetostrictive coefficient

Posted by klaurent March 26, 2025April 7, 2025UCAS

Kavli Affiliate: Long Zhang | First 5 Authors: Long Zhang, Zhongzhu Jiang, Yugang Zhang, Jing Zhang, Aifeng Wang | Summary: Two-dimensional (2D) magnetic materials have attracted considerable interest owing to their potential applications in spintronics and fundamental investigations into low-dimensional magnetism. Cr2Te3, a quasi 2D non van der Waals magnet, exhibits a complex magnetic phase […]

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Optimizing Safe and Aligned Language Generation: A Multi-Objective GRPO Approach

Posted by klaurent March 26, 2025Peking

Kavli Affiliate: Zhuo Li | First 5 Authors: Xuying Li, Zhuo Li, Yuji Kosuga, Victor Bian, | Summary: Aligning large language models (LLMs) with human values and safety constraints is challenging, especially when objectives like helpfulness, truthfulness, and avoidance of harm conflict. Reinforcement Learning from Human Feedback (RLHF) has achieved notable success in steering models, […]

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Video Motion Graphs

Posted by dbos March 26, 2025UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Haiyang Liu, Zhan Xu, Fa-Ting Hong, Hsin-Ping Huang, Yi Zhou | Summary: We present Video Motion Graphs, a system designed to generate realistic human motion videos. Using a reference video and conditional signals such as music or motion tags, the system synthesizes new videos by first retrieving […]

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Video Motion Graphs

Posted by klaurent March 26, 2025April 7, 2025UCAS

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In-orbit Performance of the Soft X-ray Imaging Telescope Xtend aboard XRISM

Posted by klaurent March 26, 2025Tokyo

Kavli Affiliate: Takeo Higuchi| First 5 Authors: Hiroyuki Uchida, Hiroyuki Uchida, , , | Summary:We present a summary of the in-orbit performance of the soft X-ray imaging telescope Xtend onboard the XRISM mission, based on in-flight observation data, including first-light celestial objects, calibration sources, and results from the cross-calibration campaign with other currently-operating X-ray observatories. […]

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TOI-2005b: An Eccentric Warm Jupiter in Spin-Orbit Alignment

Posted by klaurent March 25, 2025MIT

Kavli Affiliate: George Ricker | Summary:We report the discovery and characterization of TOI-2005b, a warm Jupiter on an eccentric (e~0.59), 17.3-day orbit around a V_mag = 9.867 rapidly rotating F-star. The object was detected as a candidate by TESS and the planetary nature of TOI-2005b was then confirmed via a series of ground-based photometric, spectroscopic, […]

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TOI-2005b: An Eccentric Warm Jupiter in Spin-Orbit Alignment

Posted by dbos March 25, 2025MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Allyson Bieryla, Jiayin Dong, George Zhou, Jason D. Eastman, L. C. Mayorga | Summary: We report the discovery and characterization of TOI-2005b, a warm Jupiter on an eccentric (e~0.59), 17.3-day orbit around a V_mag = 9.867 rapidly rotating F-star. The object was detected as a candidate […]

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TOI-2005b: An Eccentric Warm Jupiter in Spin-Orbit Alignment

Posted by dbos March 25, 2025MIT

Kavli Affiliate: Avi Shporer | First 5 Authors: Allyson Bieryla, Jiayin Dong, George Zhou, Jason D. Eastman, L. C. Mayorga | Summary: We report the discovery and characterization of TOI-2005b, a warm Jupiter on an eccentric (e~0.59), 17.3-day orbit around a V_mag = 9.867 rapidly rotating F-star. The object was detected as a candidate by […]

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