Monolithic high density integrated photonics on bulk lithium niobate

Posted by klaurent Delft

Kavli Affiliate: Simon Groblacher | Summary:Functional electro-optic (EO) tunable photonic integrated circuits are crucial to next-generation information processing and advanced computing, where ferroelectric materials such as lithium niobate (LiNbO3) provide outstanding optical properties and versatile tuning mechanisms. However, beyond achieving high-performance devices, practical deployment of LiNbO3 photonic integrated circuits requires rapid and cost-effective scale-up, which […]


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Rollplex: Cross-Phase GPU Spatial Sharing for Vision Language Model Post-Training

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Vision-language models (VLMs) enable embodied agents to reason and act from visual observations and language instructions. Reinforcement learning (RL) post-training enhances these capabilities using task feedback, but current on-policy RL runtimes execute rollout, reference scoring, and actor training in strict serial phases. While effective for text-only RL, this phase-granular execution is […]


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CoDS: Robust Collaborative Perception via Expert-driven Detection and BEV Segmentation

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:Collaborative perception breaks through single-view limitations via multi-agent information exchange. However, multi-source noise such as pose errors and communication delays degrades fusion feature quality, constraining perception performance. Joint training of detection and BEV segmentation provides a natural remedy, where segmented road regions help constrain target distributions and detection bounding boxes help […]


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Energy Partitioning in Dust-catalyzed $mathrmH_2$ and HD Formation Revealed by Molecular Simulations Considering Nuclear Quantum Effects

Posted by klaurent Peking

Kavli Affiliate: Lile Wang |Summary:Molecular hydrogen formation on interstellar dust grains is a key surface process in the interstellar medium, but the redistribution of the recombination energy between the substrate and the nascent molecule remains poorly understood. Here, we use ring-polymer molecular dynamics (RPMD) with a machine-learning force field to investigate energy partitioning during $mathrmH_2$ […]


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Floquet Quasiparticle Poisoning of Frozonium

Posted by klaurent Cornell

Kavli Affiliate: Debanjan Chowdhury | Summary:Periodic driving can suppress the Josephson nonlinearity of a fluxonium superconducting circuit, producing a nearly harmonic Floquet spectrum at isolated freezing points [K. Lewellen et al., Newton 2, 100434 (2026)]. Here we show that this dynamically frozen behavior does not generically suppress quasiparticle-induced dissipation in the resulting frozonium circuit. We […]


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Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory

Posted by klaurent Caltech

Kavli Affiliate: Dimitri Mawet| Summary:The Habitable Worlds Observatory (HWO) is a future NASA flagship mission concept identified by the Astro2020 Decadal Survey as the highest priority for large space missions. HWO should conduct "transformative astrophysics" and search for biosignatures in the atmospheres of approximately 25 potentially Earth-like planets. To further the early-stage development of HWO, […]


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CausalSplat: Towards Comprehensive Hierarchical Reasoning in 3D Gaussian Splatting

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:While 3D Gaussian Splatting (3DGS) has advanced open vocabulary scene understanding, existing methods remain confined to explicit queries. They struggle to interpret implicit intents, complex spatial constraints, and commonsense reasoning required for practical embodied interactions. To address this gap, we introduce the task of reasoning 3D Gaussian segmentation and construct two […]


Continue.. CausalSplat: Towards Comprehensive Hierarchical Reasoning in 3D Gaussian Splatting

CausalSplat: Towards Comprehensive Hierarchical Reasoning in 3D Gaussian Splatting

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:While 3D Gaussian Splatting (3DGS) has advanced open vocabulary scene understanding, existing methods remain confined to explicit queries. They struggle to interpret implicit intents, complex spatial constraints, and commonsense reasoning required for practical embodied interactions. To address this gap, we introduce the task of reasoning 3D Gaussian segmentation and construct two […]


Continue.. CausalSplat: Towards Comprehensive Hierarchical Reasoning in 3D Gaussian Splatting