All Disciplines – Page 32 – Kavli Institute Pre-Print Publications

Discovery of Quasi-periodic Eruptions in the Tidal Disruption Event and Extreme Coronal Line Emitter AT2022upj: implications for the QPE/TDE fraction and a connection to ECLEs

Posted by dbos March 24, 2025MIT

Kavli Affiliate: Erin Kara | First 5 Authors: Joheen Chakraborty, Erin Kara, Riccardo Arcodia, Johannes Buchner, Margherita Giustini | Summary: Quasi-periodic eruptions (QPEs) are recurring soft X-ray transients emerging from the vicinity of supermassive black holes (SMBHs) in nearby, low-mass galaxy nuclei; about ten QPE hosts have been identified thus far. Here we report the […]

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Effective field theory for triple-Q magnetic orders on a hexagonal lattice

Posted by klaurent March 24, 2025UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Jin-Tao Jin, Yi Zhou, , , | Summary: We develop a comprehensive Ginzburg-Landau theory describing triple-Q magnetic orders on hexagonal lattices, focusing on $O(N)$ models with $N=2$ and $N=3$. Through systematic analysis of symmetry-allowed terms in the free energy, we establish complete phase diagrams governed by competing […]

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Effective field theory for triple-Q magnetic orders on a hexagonal lattice

Posted by klaurent March 24, 2025UCAS

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UniPCGC: Towards Practical Point Cloud Geometry Compression via an Efficient Unified Approach

Posted by dbos March 24, 2025March 31, 2025Caltech

Kavli Affiliate: Wei Gao | First 5 Authors: Kangli Wang, Wei Gao, , , | Summary: Learning-based point cloud compression methods have made significant progress in terms of performance. However, these methods still encounter challenges including high complexity, limited compression modes, and a lack of support for variable rate, which restrict the practical application of […]

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ReconDreamer++: Harmonizing Generative and Reconstructive Models for Driving Scene Representation

Posted by dbos March 24, 2025March 31, 2025UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Guosheng Zhao, Xiaofeng Wang, Chaojun Ni, Zheng Zhu, Wenkang Qin | Summary: Combining reconstruction models with generative models has emerged as a promising paradigm for closed-loop simulation in autonomous driving. For example, ReconDreamer has demonstrated remarkable success in rendering large-scale maneuvers. However, a significant gap remains between […]

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A Promising Method for Strongly Correlated Electrons in Two Dimensions: Gutzwiller-Guided Density Matrix Renormalization Group

Posted by dbos March 24, 2025March 31, 2025UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Hui-Ke Jin, Rong-Yang Sun, Hong-Hao Tu, Yi Zhou, | Summary: The study of strongly correlated electron systems remains a fundamental challenge in condensed matter physics, particularly in two-dimensional (2D) systems hosting various exotic phases of matter including quantum spin liquids, unconventional superconductivity, and topological orders. Although Density […]

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NMPC-based Unified Posture Manipulation and Thrust Vectoring for Fault Recovery

Posted by dbos March 24, 2025March 31, 2025Caltech

Kavli Affiliate: Morteza Gharib | First 5 Authors: Adarsh Salagame, Shashwat Pandya, Ioannis Mandralis, Eric Sihite, Alireza Ramezani | Summary: Multi-rotors face significant risks, as actuator failures at high altitudes can easily result in a crash and the robot’s destruction. Therefore, rapid fault recovery in the event of an actuator failure is necessary for the […]

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Learning Orientation Field for OSM-Guided Autonomous Navigation

Posted by dbos March 24, 2025March 31, 2025Caltech

Kavli Affiliate: Wei Gao | First 5 Authors: Yuming Huang, Wei Gao, Zhiyuan Zhang, Maani Ghaffari, Dezhen Song | Summary: OpenStreetMap (OSM) has gained popularity recently in autonomous navigation due to its public accessibility, lower maintenance costs, and broader geographical coverage. However, existing methods often struggle with noisy OSM data and incomplete sensor observations, leading […]

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Deciphering the Origins of the Elements Through Galactic Archeology

Posted by dbos March 23, 2025March 31, 2025MIT

Kavli Affiliate: Anna Frebel | First 5 Authors: Khalil Farouqi, Anna Frebel, Friedrich-Karl Thielemann, , | Summary: Low-metallicity stars preserve the signatures of the first stellar nucleosynthesis events in the Galaxy, as their surface abundances reflect the composition of the interstellar medium from which they were born. Aside from primordial Big Bang nucleosynthesis, massive stars, […]

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Accessible, realistic genome simulation with selection using stdpopsim

Posted by dbos March 23, 2025March 31, 2025Columbia

Kavli Affiliate: Scott Small | Authors: Graham Gower, Nathaniel S. Pope, Murillo F. Rodrigues, Silas Tittes, Linh N. Tran, Ornob Alam, Maria Izabel Alves Cavassim, Peter D. Fields, Benjamin C. Haller, Xin Huang, Ben Jeffrey, Kevin Korfmann, Christopher C. Kyriazis, Jiseon Min, Ines Rebollo, Clara T Rehmann, Scott T. Small, Christopher C. R. Smith, Georgia […]

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