GADGET: Online Resource Optimization for Scheduling Ring-All-Reduce Learning Jobs

Kavli Affiliate: Jia Liu | First 5 Authors: Menglu Yu, Ye Tian, Bo Ji, Chuan Wu, Hridesh Rajan | Summary: Fueled by advances in distributed deep learning (DDL), recent years have witnessed a rapidly growing demand for resource-intensive distributed/parallel computing to process DDL computing jobs. To resolve network communication bottleneck and load balancing issues in […]


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X-ray Coronal Properties of Swift/BAT-Selected Seyfert 1 Active Galactic Nuclei

Kavli Affiliate: Claudio Ricci | First 5 Authors: Nikita Kamraj, Murray Brightman, Fiona A. Harrison, Daniel Stern, Javier A. GarcĂ­a | Summary: The corona is an integral component of Active Galactic Nuclei (AGN) which produces the bulk of the X-ray emission above 1–2 keV. However, many of its physical properties and the mechanisms powering this […]


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Deep sub-wavelength localization of light and sound in dielectric resonators

Kavli Affiliate: Mohammad Mirhosseini | First 5 Authors: Alkim Bozkurt, Chaitali Joshi, Mohammad Mirhosseini, , | Summary: Optomechanical crystals provide coupling between phonons and photons by confining them to commensurate wavelength-scale dimensions. We present a new concept for designing optomechanical crystals capable of achieving unprecedented coupling rates by confining optical and mechanical waves to deep […]


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Active entanglement enables stochastic, topological grasping

Kavli Affiliate: Robert Wood | First 5 Authors: Kaitlyn Becker, Clark Teeple, Nicholas Charles, Yeonsu Jung, Daniel Baum | Summary: Grasping, in both biological and engineered mechanisms, can be highly sensitive to the gripper and object morphology, as well as perception, and motion planning. Here we circumvent the need for feedback or precise planning by […]


Continue.. Active entanglement enables stochastic, topological grasping

Active entanglement enables stochastic, topological grasping

Kavli Affiliate: Robert Wood | First 5 Authors: Kaitlyn Becker, Clark Teeple, Nicholas Charles, Yeonsu Jung, Daniel Baum | Summary: Grasping, in both biological and engineered mechanisms, can be highly sensitive to the gripper and object morphology, as well as perception, and motion planning. Here we circumvent the need for feedback or precise planning by […]


Continue.. Active entanglement enables stochastic, topological grasping

An Optimally-Tuned Starting Point for Single-Shot $GW$ Calculations of Solids

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Stephen E. Gant, Jonah B. Haber, Marina R. Filip, Francisca Sagredo, Dahvyd Wing | Summary: The dependence of ab initio many-body perturbation theory within the $GW$ approximation on the eigensystem used in calculating quasiparticle corrections limits this method’s predictive power. Here, we investigate the accuracy of […]


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Topological Graph-based Analysis of Solid-State Ion Migration

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Jimmy-Xuan Shen, Haoming Howard Li, Ann Rutt, Matthew K. Horton, Kristin A. Persson | Summary: To accelerate the development of novel ion-conducting materials, we present a general graph-theoretic analysis framework for ion migration in any crystalline structure. The nodes of the graph represent metastable sites of […]


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Rapid discovery of cathodes, ionic conductors and solid-state electrolytes through topological migration analysis

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Jimmy-Xuan Shen, Haoming Howard Li, Ann C. Rutt, Matthew K. Horton, Kristin A. Persson | Summary: We present a graph-theoretic analysis framework for ion migration in solid-state materials. The nodes of the graph are the metastable sites of the cation and the edges are discrete migration […]


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Mitigating the effects of particle background on the Athena Wide-Field Imager

Kavli Affiliate: Steven Allen | First 5 Authors: Eric D. Miller, Catherine E. Grant, Marshall W. Bautz, Silvano Molendi, Ralph Kraft | Summary: The Wide Field Imager (WFI) flying on Athena will usher in the next era of studying the hot and energetic Universe. WFI observations of faint, diffuse sources will be limited by uncertainty […]


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