Active assembly and non-reciprocal dynamics of elastic membranes

Kavli Affiliate: Mark Bowick | First 5 Authors: John Berezney, John Berezney, , , | Summary: Equilibrium self-assembly and conventional materials processing techniques fall far short of mimicking dynamic self-actuating processes that are commonplace throughout biology. To bridge the gap between living and synthetic matter, we study adhesive non-thermal fibers immersed in an active fluid. […]


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Cross-sectional imaging of speed-of-sound distribution using photoacoustic reversal beacons

Kavli Affiliate: Yi Zhou | First 5 Authors: Yang Wang, Danni Wang, Liting Zhong, Yi Zhou, Qing Wang | Summary: Photoacoustic tomography (PAT) enables non-invasive cross-sectional imaging of biological tissues, but it fails to map the spatial variation of speed-of-sound (SOS) within tissues. While SOS is intimately linked to density and elastic modulus of tissues, […]


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$boldsymbol{Steiner}$-Hardness: A Query Hardness Measure for Graph-Based ANN Indexes

Kavli Affiliate: Cheng Peng | First 5 Authors: Zeyu Wang, Qitong Wang, Xiaoxing Cheng, Peng Wang, Themis Palpanas | Summary: Graph-based indexes have been widely employed to accelerate approximate similarity search of high-dimensional vectors. However, the performance of graph indexes to answer different queries varies vastly, leading to an unstable quality of service for downstream […]


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$boldsymbol{Steiner}$-Hardness: A Query Hardness Measure for Graph-Based ANN Indexes

Kavli Affiliate: Cheng Peng | First 5 Authors: Zeyu Wang, Qitong Wang, Xiaoxing Cheng, Peng Wang, Themis Palpanas | Summary: Graph-based indexes have been widely employed to accelerate approximate similarity search of high-dimensional vectors. However, the performance of graph indexes to answer different queries varies vastly, leading to an unstable quality of service for downstream […]


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GS-KGC: A Generative Subgraph-based Framework for Knowledge Graph Completion with Large Language Models

Kavli Affiliate: Yi Zhou | First 5 Authors: Rui Yang, Jiahao Zhu, Jianping Man, Hongze Liu, Li Fang | Summary: Knowledge graph completion (KGC) focuses on identifying missing triples in a knowledge graph (KG) , which is crucial for many downstream applications. Given the rapid development of large language models (LLMs), some LLM-based methods are […]


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The free boundary for the singular obstacle problem with logarithmic forcing term

Kavli Affiliate: Yi Zhou | First 5 Authors: Lili Du, Yi Zhou, , , | Summary: In the previous work [Interfaces Free Bound., 19, 351-369, 2017], de Queiroz and Shahgholian investigated the regularity of the solution to the obstacle problem with singular logarithmic forcing term begin{equation*} -Delta u = log u , chi_{{u>0}} quad text{in} […]


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Joint Optimization of Buffer Delay and HARQ for Video Communications

Kavli Affiliate: Cheng Peng | First 5 Authors: Baoping Cheng, Peng Lei, Xiaoyan Xie, Tao Fu, Yukun Zhang | Summary: To improve the quality of experience (QoE) in video communication over lossy networks, this paper presents a transmission method that jointly optimizes buffer delay and Hybrid Automatic Repeat request (HARQ), referred to as BD-HARQ. This […]


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Observational Signatures of Traversable Wormholes

Kavli Affiliate: Cheng Peng | First 5 Authors: Yiqian Chen, Lang Cheng, Peng Wang, Haitang Yang, | Summary: In this paper, we study the observational signatures of traversable Simpson-Visser wormholes illuminated by luminous celestial spheres and orbiting hot spots. We demonstrate that when light sources and observers are on the same side of the wormholes, […]


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Observational Signatures of Traversable Wormholes

Kavli Affiliate: Cheng Peng | First 5 Authors: Yiqian Chen, Lang Cheng, Peng Wang, Haitang Yang, | Summary: In this paper, we study the observational signatures of traversable Simpson-Visser wormholes illuminated by luminous celestial spheres and orbiting hot spots. We demonstrate that when light sources and observers are on the same side of the wormholes, […]


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Spin Liquid and Superconductivity emerging from Steady States and Measurements

Kavli Affiliate: Matthew P. A. Fisher | First 5 Authors: Kaixiang Su, Abhijat Sarma, Marcus Bintz, Thomas Kiely, Yimu Bao | Summary: We demonstrate that, starting with a simple fermion wave function, the steady mixed state of the evolution of a class of Lindbladians, and the ensemble created by strong local measurement of fermion density […]


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