This Week: Nanoscience – Kavli Institute Pre-Print Publications

Agentar-DeepFinance-300K: A Large-Scale Financial Dataset via Systematic Chain-of-Thought Synthesis Optimization

Posted by klaurent July 17, 2025July 21, 2025Caltech, This Week: Nanoscience

Kavli Affiliate: Lihong Wang | First 5 Authors: Xiaoke Zhao, Xiaoke Zhao, , , | Summary: Recent advancements in large language models (LLMs) have demonstrated remarkable general reasoning capabilities, holding significant potential for applications in the financial domain, a field that requires robust and reliable reasoning. It has been demonstrated that distilling high-quality chain-of-thought (CoT) […]

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Robust Beamforming Design for Secure Near-Field ISAC Systems

Posted by klaurent July 17, 2025July 21, 2025Berkeley, This Week: Nanoscience

Kavli Affiliate: Feng Wang | First 5 Authors: Ziqiang CHen, Ziqiang CHen, , , | Summary: This letter investigates the robust beamforming design for a near-field secure integrated sensing and communication (ISAC) system with multiple communication users (CUs) and targets, as well as multiple eavesdroppers. Taking into account the channel uncertainty constraints, we maximize the […]

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Low-energy domain wall racetracks with multiferroic topologies

Posted by klaurent July 16, 2025July 21, 2025Cornell, This Week: Nanoscience

Kavli Affiliate: Darrell Schlom | First 5 Authors: Arundhati Ghosal, Arundhati Ghosal, , , | Summary: Conventional racetrack memories move information by pushing magnetic domain walls or other spin textures with spin-polarized currents, but the accompanying Joule heating inflates their energy budget and can hamper scaling. Here we present a voltage-controlled, magnetoelectric racetrack in which […]

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Kinetics of Vacancy-Assisted Reversible Phase Transition in Monolayer MoTe$_2$

Posted by klaurent July 16, 2025July 21, 2025Caltech, This Week: Nanoscience

Kavli Affiliate: Wei Gao | First 5 Authors: Fei Shuang, Fei Shuang, , , | Summary: We investigate the kinetics of phase transition between the 2H and 1T$^prime$ phases in monolayer MoTe$_2$ using atomistic simulations based on a machine learning interatomic potential trained on SCAN-DFT data, combined with mean field kinetic theory to interpret the […]

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Measurement-Induced Phase Transition in a Disordered XX Spin Chain: A Real-Space Renormalization Group Study

Posted by klaurent July 16, 2025July 21, 2025Berkeley, This Week: Nanoscience

Kavli Affiliate: Joel E. Moore | First 5 Authors: Siddharth Tiwary, Siddharth Tiwary, , , | Summary: Spin chains with quenched disorder exhibit rich critical behavior, often captured by real-space renormalization group (RSRG) techniques. However, the physics of such systems in the presence of random measurements (i.e., non-Hermitian dephasing) remains largely unexplored. The interplay between […]

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Simultaneous High-Fidelity Single-Qubit Gates in a Spin Qubit Array

Posted by klaurent July 16, 2025July 21, 2025Delft, This Week: Nanoscience

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Yi-Hsien Wu, Yi-Hsien Wu, , , | Summary: Silicon spin qubits are a promising platform for scalable quantum computing due to their compatibility with industrial semiconductor fabrication and the recent scaling to multi-qubit devices. Control fidelities above the 99% fault-tolerant threshold are routinely achieved, but extending high-fidelity […]

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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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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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