Information-Theoretic Decentralized Secure Aggregation with Collusion Resilience

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Xiang Zhang, , , | Summary: In decentralized federated learning (FL), multiple clients collaboratively learn a shared machine learning (ML) model by leveraging their privately held datasets distributed across the network, through interactive exchange of the intermediate model updates. To ensure data security, cryptographic techniques […]


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Large phonon-drag thermopower polarity reversal in Ba-doped KTaO3

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Mohamed Nawwar, Mohamed Nawwar, , , | Summary: This study reports the observation of phonon-drag thermopower polarity reversal in Ba-doped KTaO3 thin films, mediated by electron-phonon Umklapp scattering. Epitaxial films with distinct carrier concentrations (3.7 x 10^20 cm^-3 and 4.9 x 10^19 cm^-3) were grown via […]


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DiSC-Med: Diffusion-based Semantic Communications for Robust Medical Image Transmission

Kavli Affiliate: Xiang Zhang | First 5 Authors: Fupei Guo, Fupei Guo, , , | Summary: The rapid development of artificial intelligence has driven smart health with next-generation wireless communication technologies, stimulating exciting applications in remote diagnosis and intervention. To enable a timely and effective response for remote healthcare, efficient transmission of medical data through […]


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Quadratic Programming-Based Posture Manipulation and Thrust-vectoring for Agile Dynamic Walking on Narrow Pathways

Kavli Affiliate: Morteza Gharib | First 5 Authors: Chenghao Wang, Chenghao Wang, , , | Summary: There has been significant advancement in legged robot’s agility where they can show impressive acrobatic maneuvers, such as parkour. These maneuvers rely heavily on posture manipulation. To expand the stability and locomotion plasticity, we use the multi-modal ability in […]


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A multi-dimensional quantum estimation and model learning framework based on variational Bayesian inference

Kavli Affiliate: Tim H. Taminiau | First 5 Authors: Federico Belliardo, Federico Belliardo, , , | Summary: The advancement and scaling of quantum technology has made the learning and identification of quantum systems and devices in highly-multidimensional parameter spaces a pressing task for a variety of applications. In many cases, the integration of real-time feedback […]


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Realizing Nonreciprocal Linear Dichroism and Emission from Simple Media

Kavli Affiliate: Richard D. Robinson | First 5 Authors: Thomas J. Ugras, Thomas J. Ugras, , , | Summary: Reciprocity, the principle that a system response is identical in the forward path compared to the backward path, is a fundamental concept across physics, from electrical circuits and optics to acoustics and heat conduction. Nonreciprocity arises […]


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Spin-Polaron Mediated Superconductivity in Doped Chern Antiferromagnets

Kavli Affiliate: Debanjan Chowdhury | First 5 Authors: Xuepeng Wang, Xuepeng Wang, , , | Summary: The study of interacting topological bands with a tunable bandwidth offers a unique platform to study the interplay of intertwined orders and emergent non-electronic excitations. Here we design a time-reversal symmetric and sign-problem-free electronic model with tunable Chern bands […]


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Optically Actuated Transitions in Multimodal, Bistable Micromechanical Oscillators

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Lior Michaeli, Lior Michaeli, , , | Summary: We experimentally demonstrate a new class of optomechanical nonlinearities in weakly damped micromechanical resonators, arising from the interplay between the Duffing nonlinearity, intermodal coupling, and thermal fluctuations. Within the bistable regime of a single Duffing mode driven by […]


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Excitation and tunneling spectra of a fractional quantum Hall system in the thin cylinder limit

Kavli Affiliate: Joel E. Moore | First 5 Authors: Jyesta M. Adhidewata, Jyesta M. Adhidewata, , , | Summary: The excitations of fractional quantum Hall effect (FQHE) states have been largely inaccessible to experimental probes until recently. New electron scanning tunneling microscopy (STM) results from Hu et.al. (2023) show promise in detecting and identifying these […]


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Heterogeneous Ensemble Enables a Universal Uncertainty Metric for Atomistic Foundation Models

Kavli Affiliate: Wei Gao | First 5 Authors: Kai Liu, Kai Liu, , , | Summary: Universal machine learning interatomic potentials (uMLIPs) are reshaping atomistic simulation as foundation models, delivering near textitab initio accuracy at a fraction of the cost. Yet the lack of reliable, general uncertainty quantification limits their safe, wide-scale use. Here we […]


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