Diffusive dynamics of charge regulated macro-ion solutions

Posted by dbos This Week: Theoretical Physics, UCAS

Kavli Affiliate: Rudolf Podgornik | First 5 Authors: Bin Zheng, Shigeyuki Komura, David Andelman, Rudolf Podgornik, | Summary: Onsager’s variational principle is generalized to address the diffusive dynamics of an electrolyte solution composed of charge-regulated macro-ions and counterions. The free energy entering the Rayleighian corresponds to the Poisson-Boltzmann theory augmented by the charge-regulation mechanism. The […]


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Cross-Modal Consistency in Multimodal Large Language Models

Posted by dbos Berkeley, This Week: Nanoscience

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Senyu Li, Ning Shi, Bradley Hauer, Zijun Wu | Summary: Recent developments in multimodal methodologies have marked the beginning of an exciting era for models adept at processing diverse data types, encompassing text, audio, and visual content. Models like GPT-4V, which merge computer vision with […]


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Cancelling mod-2 anomalies by Green-Schwarz mechanism with $B_{μν}$

Posted by dbos This Week: Astrophysics, Tokyo

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Shota Saito, Yuji Tachikawa, , , | Summary: We study if and when mod-2 anomalies can be canceled by the Green-Schwarz mechanism with the introduction of an antisymmetric tensor field $B_{munu}$. As explicit examples, we examine $SU(2)$ and more general $Sp(n)$ gauge theories in four and eight […]


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Solving the Inverse Band-Structure Problem for Photonic Crystals

Posted by dbos Berkeley, This Week: Nanoscience

Kavli Affiliate: Feng Wang | First 5 Authors: Aditya Bahulikar, Feng Wang, Mustafa Cenk Gursoy, Rodrick Kuate Defo, | Summary: We present a symmetry-agnostic topology optimization framework for photonic-crystal structures based on computation of the photonic density of states in a manner analogous to $Gamma$-point integration. We provide a generalization of the approach that allows […]


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Coherently Coupled Carrier and Phonon Dynamics in Elemental Tellurium Probed by Few-Femtosecond Core-Level Transient Absorption

Posted by dbos Berkeley, This Week: Nanoscience

Kavli Affiliate: Peidong Yang | First 5 Authors: Jonah R. Adelman, Hugo Laurell, Lorenz Drescher, Han K. D. Le, Peidong Yang | Summary: The narrow bandgap semiconductor elemental tellurium (Te) has a unique electronic structure due to strong spin-orbit splitting and a lack of inversion symmetry of its helical lattice. Using broadband extreme ultraviolet core-level […]


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$S^5$: New insights from deep spectroscopic observations of the tidal tails of the globular clusters NGC 1261 and NGC 1904

Posted by dbos Chicago, This Week: Astrophysics

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Petra Awad, Ting S. Li, Denis Erkal, Reynier F. Peletier, Kerstin Bunte | Summary: As globular clusters (GCs) orbit the Milky Way, their stars are tidally stripped forming tidal tails that follow the orbit of the clusters around the Galaxy. The morphology of these tails is […]


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The THESAN project: tracking the expansion and merger histories of ionized bubbles during the Epoch of Reionization

Posted by dbos MIT, This Week: Astrophysics

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Nathan Jamieson, Aaron Smith, Meredith Neyer, Rahul Kannan, Enrico Garaldi | Summary: The growth of ionized hydrogen bubbles in the intergalactic medium around early luminous objects is a fundamental process during the Epoch of Reionization (EoR). In this study, we analyze bubble sizes and their evolution using […]


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Intelligent Adaptive Metasurface in Complex Wireless Environments

Posted by dbos Peking, This Week: Astrophysics

Kavli Affiliate: Ran Wang | First 5 Authors: Han Qing Yang, Jun Yan Dai, Hui Dong Li, Lijie Wu, Meng Zhen Zhang | Summary: The programmable metasurface is regarded as one of the most promising transformative technologies for next-generation wireless system applications. Due to the lack of effective perception ability of the external electromagnetic environment, […]


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EgoVid-5M: A Large-Scale Video-Action Dataset for Egocentric Video Generation

Posted by dbos This Week: Theoretical Physics, UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Xiaofeng Wang, Kang Zhao, Feng Liu, Jiayu Wang, Guosheng Zhao | Summary: Video generation has emerged as a promising tool for world simulation, leveraging visual data to replicate real-world environments. Within this context, egocentric video generation, which centers on the human perspective, holds significant potential for enhancing […]


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Numerical Analysis of Lensless Imaging with Active Metasurfaces and Single-Pixel Detectors

Posted by dbos Caltech, This Week: Nanoscience

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Julie Belleville, Prachi Thureja, Harry A. Atwater, , | Summary: We introduce a conceptual framework for a lensless imaging system which employs an active metasurface as a high-frequency, continuously tunable amplitude and phase modulation aperture, coupled to a discrete single-pixel detector. Using an array factor formalism, […]


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