dbos – Page 112 – Kavli Institute Pre-Print Publications

Ultrafast All-Optical Measurement of Squeezed Vacuum in a Lithium Niobate Nanophotonic Circuit

Posted by dbos February 1, 2025February 10, 2025Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: James Williams, Elina Sendonaris, Rajveer Nehra, Robert M Gray, Ryoto Sekine | Summary: Squeezed vacuum, a fundamental resource for continuous-variable quantum information processing, has been used to demonstrate quantum advantages in sensing, communication, and computation. While most experiments use homodyne detection to characterize squeezing and are therefore […]

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Spectral Sufficient Conditions for Graph Factors

Posted by dbos February 1, 2025Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Fengyun Ren, Shumin Zhang, Ke Wang, , | Summary: The ${K_{1,1}, K_{1,2},C_m: mgeq3}$-factor of a graph is a spanning subgraph whose each component is an element of ${K_{1,1}, K_{1,2},C_m: mgeq3}$. In this paper, through the graph spectral methods, we establish the lower bound of the signless Laplacian […]

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Rigorous expansions of modular forms at CM points, I: Denominators

Posted by dbos February 1, 2025February 10, 2025Cornell

Kavli Affiliate: Chris Xu | First 5 Authors: Chris Xu, , , , | Summary: We describe an algorithm to rigorously compute the power series expansion at a CM point of a weight $2$ cusp form of level coprime to $6$. Our algorithm works by bounding the denominators that appear due to ramification, and without […]

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MIM: Multi-modal Content Interest Modeling Paradigm for User Behavior Modeling

Posted by dbos February 1, 2025February 10, 2025Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Bencheng Yan, Si Chen, Shichang Jia, Jianyu Liu, Yueran Liu | Summary: Click-Through Rate (CTR) prediction is a crucial task in recommendation systems, online searches, and advertising platforms, where accurately capturing users’ real interests in content is essential for performance. However, existing methods heavily rely on ID […]

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Theory of ab initio downfolding with arbitrary range electron-phonon coupling

Posted by dbos January 31, 2025February 10, 2025Berkeley

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Norm M. Tubman, Christopher J. N. Coveney, Chih-En Hsu, Andres Montoya-Castillo, Marina R. Filip | Summary: Ab initio downfolding describes the electronic structure of materials within a low-energy subspace, often around the Fermi level. Typically starting from mean-field calculations, this framework allows for the calculation of […]

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Characterization of the Teledyne COSMOS Camera: A Large Format CMOS Image Sensor for Astronomy

Posted by dbos January 31, 2025February 10, 2025MIT

Kavli Affiliate: Gabor Furesz | First 5 Authors: Christopher Layden, Jill Juneau, Gustav Pettersson, Nathan Lourie, Benjamin Schneider | Summary: The Teledyne COSMOS-66 is a next-generation CMOS camera designed for astronomical imaging, featuring a large-format sensor ($8120 times 8120$ pixels, each $10 mu m$), high quantum efficiency, high frame rates, and a correlated multi-sampling mode […]

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Low-Rank Adapting Models for Sparse Autoencoders

Posted by dbos January 31, 2025MIT

Kavli Affiliate: Max Tegmark | First 5 Authors: Matthew Chen, Joshua Engels, Max Tegmark, , | Summary: Sparse autoencoders (SAEs) decompose language model representations into a sparse set of linear latent vectors. Recent works have improved SAEs using language model gradients, but these techniques require many expensive backward passes during training and still cause a […]

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Low-Rank Adapting Models for Sparse Autoencoders

Posted by dbos January 31, 2025Uncategorized

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A Spectroscopically Calibrated Prescription for Extracting PAH Flux from JWST MIRI Imaging

Posted by dbos January 31, 2025Peking

Kavli Affiliate: Claudio Ricci | First 5 Authors: Grant P. Donnelly, Thomas S. -Y. Lai, Lee Armus, Tanio Díaz-Santos, Kirsten L. Larson | Summary: We introduce a prescription for estimating the flux of the 7.7 micron and 11.3 micron polycyclic aromatic hydrocarbon (PAH) features from broadband JWST/MIRI images. Probing PAH flux with MIRI imaging data […]

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Optical Readout of Coherent Nuclear Spins Beyond the NV Center Electron T$_1$

Posted by dbos January 31, 2025February 10, 2025Cornell

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Johnathan Kuan, Gregory D. Fuchs, , , | Summary: The nitrogen-vacancy (NV) center is an emerging platform for constructing inertial sensors. Its native nitrogen spin can serve as a gyroscope using Ramsey interferometry protocols. The sensitivities of these nuclear-spin-based NV gyroscopes are limited by the phase […]

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