July 27, 2022 – Kavli Institute Pre-Print Publications

Hyperspectral imaging of excitons within a moiré unit-cell with a sub-nanometer electron probe

Posted by klaurent July 27, 2022Berkeley

Kavli Affiliate: Archana Raja| Summary:Electronic and optical excitations in two-dimensional moiré systems are uniquely sensitive to local atomic registries, leading to materials- and twist-angle specific correlated electronic ground states with varied degree of localization. However, there has been no direct experimental correlation between the sub-nanometer structure and emergent excitonic transitions, comprising tightly-bound pairs of photoexcited […]

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Near-infrared Extragalactic Background Light Fluctuations on Nonlinear Scales

Posted by dbos July 27, 2022Caltech

Kavli Affiliate: James J. Bock | First 5 Authors: Yun-Ting Cheng, James J. Bock, , , | Summary: Several fluctuation studies on the near-infrared extragalactic background light (EBL) find an excess power at tens of arcminute scales ($ellsim10^3$). Emission from the intra-halo light (IHL) has been proposed as a possible explanation for the excess signal. […]

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Distributed YSOs in the Perseus Molecular Cloud from the Gaia and LAMOST Surveys

Posted by klaurent July 27, 2022August 8, 2022Peking

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Xiao-Long Wang, Min Fang, Yu Gao, Hong-Xin Zhang, Gregory J. Herczeg | Summary: Identifying the young optically visible population in a star-forming region is essential for fully understanding the star formation event. In this paper, We identify 211 candidate members of the Perseus molecular cloud based […]

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Diagnosing FUor-like Sources: The Parameter Space of Viscously Heated Disks in the Optical and Near-IR

Posted by klaurent July 27, 2022August 8, 2022Peking

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Hanpu Liu, Gregory J. Herczeg, Doug Johnstone, Carlos Contreras-Peña, Jeong-Eun Lee | Summary: FU Ori type objects (FUors) are decades-long outbursts of accretion onto young stars that are strong enough to viscously heat disks so that the disk outshines the central star. We construct models for […]

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Testing magnetic interference between TES detectors and the telescope environment for future CMB satellite missions

Posted by klaurent July 27, 2022Tokyo

Kavli Affiliate: Nobuhiko Katayama | Summary:The two most common components of several upcoming CMB experiments are large arrays of superconductive TES (Transition-Edge Sensor) detectors and polarization modulator units, e.g. continuously-rotating Half-Wave Plates (HWP). A high detector count is necessary to increase the instrument raw sensitivity, however past experiments have shown that systematic effects are becoming […]

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Testing magnetic interference between TES detectors and the telescope environment for future CMB satellite missions

Posted by klaurent July 27, 2022Tokyo

Kavli Affiliate: Nobuhiko Katayama | First 5 Authors: Tommaso Ghigna, Thuong Duc Hoang, Takashi Hasebe, Yurika Hoshino, Nobuhiko Katayama | Summary: The two most common components of several upcoming CMB experiments are large arrays of superconductive TES (Transition-Edge Sensor) detectors and polarization modulator units, e.g. continuously-rotating Half-Wave Plates (HWP). A high detector count is necessary […]

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INTERACT: Achieving Low Sample and Communication Complexities in Decentralized Bilevel Learning over Networks

Posted by klaurent July 27, 2022Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Zhuqing Liu, Xin Zhang, Prashant Khanduri, Songtao Lu, Jia Liu | Summary: In recent years, decentralized bilevel optimization problems have received increasing attention in the networking and machine learning communities thanks to their versatility in modeling decentralized learning problems over peer-to-peer networks (e.g., multi-agent meta-learning, multi-agent reinforcement […]

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