klaurent – Page 4 – Kavli Institute Pre-Print Publications

EquiContact: A Hierarchical SE(3) Vision-to-Force Equivariant Policy for Spatially Generalizable Contact-rich Tasks

Posted by klaurent July 15, 2025July 21, 2025Berkeley, This Week: Nanoscience

Kavli Affiliate: Xiang Zhang | First 5 Authors: Joohwan Seo, Joohwan Seo, , , | Summary: This paper presents a framework for learning vision-based robotic policies for contact-rich manipulation tasks that generalize spatially across task configurations. We focus on achieving robust spatial generalization of the policy for the peg-in-hole (PiH) task trained from a small […]

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Digital defocus aberration interference for automated optical microscopy

Posted by klaurent July 15, 2025July 21, 2025Caltech, This Week: Nanoscience

Kavli Affiliate: Changhuei Yang | First 5 Authors: Haowen Zhou, Haowen Zhou, , , | Summary: Automation in optical microscopy is critical for enabling high-throughput imaging across a wide range of biomedical applications. Among the essential components of automated systems, robust autofocusing plays a pivotal role in maintaining image quality for both single-plane and volumetric […]

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Insights for Early Massive Black Hole Growth from JWST Detection of the [Ne v] λ3427 Emission Line

Posted by klaurent July 14, 2025July 23, 2025Peking, This Week: Astrophysics

Kavli Affiliate: Claudio Ricci | First 5 Authors: Benny Trakhtenbrot, Benny Trakhtenbrot, , , | Summary: We use the narrow [Ne v] $lambda$3427 emission line detected in the recently published JWST spectra of two galaxies, at z = 6.9 and 5.6, to study the key properties of the active galactic nuclei (AGN) and the supermassive […]

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BASS. XLIX. Characterization of highly luminous and obscured AGNs: local X-ray and [NeV]$λ$3426 emission in comparison with the high-redshift Universe

Posted by klaurent July 14, 2025July 23, 2025Peking, This Week: Astrophysics

Kavli Affiliate: Claudio Ricci | First 5 Authors: , , , , | Summary: We present a detailed analysis of the most luminous and obscured Active Galactic Nuclei (AGNs) detected in the ultra-hard X-ray band (14-195 keV) by Swift/BAT. Our sample comprises 21 X-ray luminous (log $L_X/rm erg,s^-1>44.6$, 2-10 keV) AGNs at $z<0.6$, optically classified […]

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The Discovery of Little Red Dots in the Local Universe: Signatures of Cool Gas Envelopes

Posted by klaurent July 14, 2025July 21, 2025Peking, This Week: Astrophysics

Kavli Affiliate: Kohei Inayoshi | First 5 Authors: Xiaojing Lin, Xiaojing Lin, , , | Summary: JWST observations have revealed a population of high-redshift "little red dots" (LRDs) that challenge conventional AGN models. We report the discovery of three local LRDs at $z = 0.1-0.2$, initially selected from the SDSS database, with follow-up optical/near-IR spectroscopy […]

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Energy Extraction via Magnetic Reconnection in Kerr-Sen-AdS$_4$ Black Hole: Circular Plasma and Plunging Plasma

Posted by klaurent July 14, 2025July 21, 2025Peking, This Week: Astrophysics

Kavli Affiliate: Ke Wang | First 5 Authors: Xiao-Xiong Zeng, Xiao-Xiong Zeng, , , | Summary: In this paper, we investigate the power and efficiency of energy extraction through magnetic reconnection in the Kerr-Sen-AdS$_4$ black hole, with a primary focus on both the circular orbit and plunging region. We plot the allowed regions for energy […]

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Graphene Design with Parallel Cracks: Abnormal Crack Coalescence and Its Impact on Mechanical Properties

Posted by klaurent July 14, 2025July 21, 2025Caltech, This Week: Nanoscience

Kavli Affiliate: Chiara Daraio | First 5 Authors: Suyeong Jin, Suyeong Jin, , , | Summary: Graphene is a material with potential applications in electric, thermal, and mechanical fields, and has seen significant advancements in growth methods that facilitate large-scale production. However, defects during growth and transfer to other substrates can compromise the integrity and […]

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Heterogeneous integration of silicon nitride and amorphous silicon carbide photonics

Posted by klaurent July 14, 2025July 21, 2025Delft, This Week: Nanoscience

Kavli Affiliate: Simon Groblacher | First 5 Authors: Zizheng Li, Zizheng Li, , , | Summary: Amorphous silicon carbide (a-SiC) has emerged as a compelling candidate for applications in integrated photonics, known for its high refractive index, high optical quality, high thermo-optic coefficient, and strong third-order nonlinearities. Furthermore, a-SiC can be easily deposited via CMOS-compatible […]

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Electro-optic Kerr Effect Induced by Nonlinear Transport in monolayer WTe2

Posted by klaurent July 14, 2025July 21, 2025This Week: Theoretical Physics, UCAS

Kavli Affiliate: Gang Su | First 5 Authors: He-Lin Li, He-Lin Li, , , | Summary: The nonlinear Hall effect (NLHE) can induce optical anisotropy by modifying a material’s dielectric tensor, presenting opportunities for novel characterization and device applications. While the magneto-optical Kerr effect (MOKE) probes the linear Hall effect (LHE) in magnetic materials, an […]

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ProGait: A Multi-Purpose Video Dataset and Benchmark for Transfemoral Prosthesis Users

Posted by klaurent July 14, 2025July 21, 2025Caltech, This Week: Nanoscience

Kavli Affiliate: Wei Gao | First 5 Authors: Xiangyu Yin, Xiangyu Yin, , , | Summary: Prosthetic legs play a pivotal role in clinical rehabilitation, allowing individuals with lower-limb amputations the ability to regain mobility and improve their quality of life. Gait analysis is fundamental for optimizing prosthesis design and alignment, directly impacting the mobility […]

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