Strong Lensing analysis of SPT-CLJ2325$-$4111 and SPT-CLJ0049$-$2440, two Powerful Cosmic Telescopes ($R_E > 40”$) from the SPT Clusters Sample

Posted by Chicago

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Guillaume Mahler, Keren Sharon, Matthew Bayliss, Lindsey. E. Bleem, Mark Brodwin | Summary: We report the results from a study of two massive ($M_{500c} > 6.0 times 10^{14} M_{odot}$) strong lensing clusters selected from the South Pole Telescope cluster survey for their high Einstein radius ($R_E […]


Continue.. Strong Lensing analysis of SPT-CLJ2325$-$4111 and SPT-CLJ0049$-$2440, two Powerful Cosmic Telescopes ($R_E > 40”$) from the SPT Clusters Sample

Twinkle: A GPU-based binary-lens microlensing code with contour integration method

Posted by Peking

Kavli Affiliate: Lile Wang | First 5 Authors: Suwei Wang, Lile Wang, Subo Dong, , | Summary: With the rapidly increasing rate of microlensing planet detections, microlensing modeling software faces significant challenges in computation efficiency. Here, we develop the Twinkle code, an efficient and robust binary-lens modeling software suite optimized for heterogeneous computing devices, especially […]


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Control of tongue movements by the Purkinje cells of the cerebellum

Posted by dbos Hopkins

Kavli Affiliate: Reza Shadmehr | Authors: Paul Hage, Mohammad Amin Fakharian, Alden M. Shoup, Jay S Pi, Ehsan Sedaghat-Nejad, Simon P Orozco, In Kyu Jang, Vivian Looi, Toren Arginteanu and Reza Shadmehr | Summary: To quantify the cerebellum’s contributions to control of the tongue, we trained head-fixed marmosets to make dexterous movements, harvesting food from […]


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The superior colliculus gates dopamine responses to conditioned stimuli in visual classical conditioning

Posted by dbos This Week: Neuroscience, UCSD / Salk

Kavli Affiliate: John Reynolds | Authors: Yan-Feng Zhang, Jean-Philippe Dufour, Peter Zatka-Haas, Peter Redgrave, Melony J Black, Armin Lak, Ed Mann, Stephanie J Cragg, Wickliffe Abraham and John NJ Reynolds | Summary: In classical Pavlovian conditioning, it is well-established that midbrain dopamine neurons respond to conditioned stimuli (CS) that predict a reward. However, how the […]


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Targeted stimulation of motor cortex neural ensembles drives learned movements

Posted by dbos This Week: Neuroscience, UCSD / Salk

Kavli Affiliate: Takaki Komiyama | Authors: An Wu, Qiyu Chen, Bin Yu, Soyoung Chae, Zijing Tan, Assaf Ramot and Takaki Komiyama | Summary: During the execution of learned motor skills, the neural population in the layer 2/3 (L2/3) of the primary motor cortex (M1) expresses a reproducible spatiotemporal activity pattern. It is debated whether M1 […]


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Non-local modular flows across deformed null-cuts

Posted by dbos This Week: Theoretical Physics, UCAS

Kavli Affiliate: Huajia Wang | First 5 Authors: Guan-Cheng Lu, Huajia Wang, , , | Summary: Modular flows probe important aspects of the entanglement structures, especially those of QFTs, in a dynamical framework. Despite the expected non-local nature in the general cases, the majority of explicitly understood examples feature local space-time trajectories under modular flows. […]


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Time-reversal symmetry breaking fractional quantum spin Hall insulator in moiré MoTe2

Posted by dbos Cornell, This Week: Nanoscience

Kavli Affiliate: Jie Shan | First 5 Authors: Kaifei Kang, Yichen Qiu, Bowen Shen, Kihong Lee, Zhengchao Xia | Summary: Twisted bilayer transition metal dichalcogenide semiconductors, which support flat Chern bands with enhanced interaction effects, realize a platform for fractional Chern insulators and fractional quantum spin Hall (FQSH) insulators. A recent experiment has reported the […]


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The Kratos Framework for Hetrogeneous Astrophysical Simulations: Fundamental Infrastructures and Hydrodynamics

Posted by dbos Peking, This Week: Astrophysics

Kavli Affiliate: Lile Wang | First 5 Authors: Lile Wang, , , , | Summary: The field of astrophysics has long sought computational tools capable of harnessing the power of modern GPUs to simulate the complex dynamics of astrophysical phenomena. The Kratos Framework, a novel GPU-based simulation system designed to leverage heterogeneous computing architectures, is […]


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ROLO-SLAM: Rotation-Optimized LiDAR-Only SLAM in Uneven Terrain with Ground Vehicle

Posted by dbos Berkeley, This Week: Nanoscience

Kavli Affiliate: Xiang Zhang | First 5 Authors: Yinchuan Wang, Bin Ren, Xiang Zhang, Pengyu Wang, Chaoqun Wang | Summary: LiDAR-based SLAM is recognized as one effective method to offer localization guidance in rough environments. However, off-the-shelf LiDAR-based SLAM methods suffer from significant pose estimation drifts, particularly components relevant to the vertical direction, when passing […]


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SDPO: Segment-Level Direct Preference Optimization for Social Agents

Posted by dbos Peking, This Week: Astrophysics

Kavli Affiliate: Ke Wang | First 5 Authors: Aobo Kong, Wentao Ma, Shiwan Zhao, Yongbin Li, Yuchuan Wu | Summary: Social agents powered by large language models (LLMs) can simulate human social behaviors but fall short in handling complex goal-oriented social dialogues. Direct Preference Optimization (DPO) has proven effective in aligning LLM behavior with human […]


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