2022 – Page 160 – Kavli Institute Pre-Print Publications

Surrogate model for gravitational wave signals from non-spinning, comparable- to large-mass-ratio black hole binaries built on black hole perturbation theory waveforms calibrated to numerical relativity

Posted by klaurent April 5, 2022April 21, 2022MIT

Kavli Affiliate: Scott A. Hughes | First 5 Authors: Tousif Islam, Scott E. Field, Scott A. Hughes, Gaurav Khanna, Vijay Varma | Summary: We present a reduced-order surrogate model of gravitational waveforms from non-spinning binary black hole systems with comparable to large mass-ratio configurations. This surrogate model, texttt{BHPTNRSur1dq1e4}, is trained on waveform data generated by […]

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Text Spotting Transformers

Posted by klaurent April 5, 2022April 21, 2022Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Yongwen Su, Subarna Tripathi, Zhuowen Tu, | Summary: In this paper, we present TExt Spotting TRansformers (TESTR), a generic end-to-end text spotting framework using Transformers for text detection and recognition in the wild. TESTR builds upon a single encoder and dual decoders for the joint […]

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Biological responses to terahertz radiation with different power density in primary hippocampal neurons

Posted by klaurent April 4, 2022April 21, 2022Rockefeller

Kavli Affiliate: Li Zhao | Authors: Li Zhao, Ruhan Yi, Sun Liu, Yunliang Chi, Shengzhi Tan, Ji Dong, Hui Wang, Jing Zhang, Haoyu Wang, Xinping Xu, Binwei Yao, Bo Wang and Ruiyun Peng | Summary: Background Terahertz (THz) radiation is a valuable imaging and sensing tool which is widely used in industry and medicine. However, […]

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Testing multiflavored ULDM models with SPARC

Posted by klaurent April 4, 2022April 21, 2022Chicago

Kavli Affiliate: Nickolay Y. Gnedin | First 5 Authors: Lauren Street, Nickolay Y. Gnedin, L. C. R. Wijewardhana, , | Summary: We perform maximum likelihood estimates (MLEs) for single and double flavor ultralight dark matter (ULDM) models using the Spitzer Photometry and Accurate Rotation Curves (SPARC) database. These estimates are compared to MLEs for several […]

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Experimental quantum adversarial learning with programmable superconducting qubits

Posted by klaurent April 4, 2022Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Wenhui Ren, Weikang Li, Shibo Xu, Ke Wang, Wenjie Jiang | Summary: Quantum computing promises to enhance machine learning and artificial intelligence. Different quantum algorithms have been proposed to improve a wide spectrum of machine learning tasks. Yet, recent theoretical works show that, similar to traditional classifiers […]

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The binary black hole spin distribution likely broadens with redshift

Posted by klaurent April 4, 2022MIT

Kavli Affiliate: Salvatore Vitale | First 5 Authors: Sylvia Biscoveanu, Thomas A. Callister, Carl-Johan Haster, Ken K. Y. Ng, Salvatore Vitale | Summary: The population-level distributions of the masses, spins, and redshifts of binary black holes (BBHs) observed using gravitational waves can shed light on how these systems form and evolve. Because of the complex […]

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Unsupervised Learning of Accurate Siamese Tracking

Posted by klaurent April 4, 2022Peking

Kavli Affiliate: Li Xin Li | First 5 Authors: Qiuhong Shen, Lei Qiao, Jinyang Guo, Peixia Li, Xin Li | Summary: Unsupervised learning has been popular in various computer vision tasks, including visual object tracking. However, prior unsupervised tracking approaches rely heavily on spatial supervision from template-search pairs and are still unable to track objects […]

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Software Rasterization of 2 Billion Points in Real Time

Posted by klaurent April 4, 2022Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Markus Schütz, Bernhard Kerbl, Michael Wimmer, , | Summary: We propose a software rasterization pipeline for point clouds that is capable of brute-force rendering up to two billion points in real time (60fps). Improvements over the state of the art are achieved by batching points in a […]

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The orientations of the binary black holes in GWTC-3

Posted by klaurent April 3, 2022MIT

Kavli Affiliate: Salvatore Vitale | First 5 Authors: Salvatore Vitale, Sylvia Biscoveanu, Colm Talbot, , | Summary: It is expected that the orbital planes of gravitational-wave (GW) sources are isotropically distributed. However, both physical and technical factors, such as alternate theories of gravity with birefringence, catalog contamination, and search algorithm limitations, could result in inferring […]

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Nearby Young Stars and Young Moving Groups

Posted by klaurent April 2, 2022MIT

Kavli Affiliate: David A. Principe | First 5 Authors: Joel H. Kastner, David A. Principe, , , | Summary: The past two decades have seen dramatic progress in our knowledge of the population of stars of age $lesssim$150 Myr that lie within $sim$100 pc of the Sun. Most such stars are found in loose kinematic […]

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