The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters

Kavli Affiliate: Shawn Henderson | First 5 Authors: Simone Aiola, Erminia Calabrese, Loïc Maurin, Sigurd Naess, Benjamin L. Schmitt | Summary: We present new arcminute-resolution maps of the Cosmic Microwave Background temperature and polarization anisotropy from the Atacama Cosmology Telescope, using data taken from 2013-2016 at 98 and 150 GHz. The maps cover more than […]


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Solid-state ionic rectification in perovskite nanowire heterostructures

Kavli Affiliate: Peidong Yang | First 5 Authors: Qiao Kong, Amael Obliger, Minliang Lai, Mengyu Gao, David T. Limmer | Summary: Halide perovskites have attracted increasing research attention regarding their outstanding optoelectronic applications. Owing to its low activation energy, ion migration is implicated in the long-term stability and many unusual transport behaviors of halide perovskite […]


Continue.. Solid-state ionic rectification in perovskite nanowire heterostructures

Solid-state ionic rectification in perovskite nanowire heterostructures

Kavli Affiliate: Peidong Yang | First 5 Authors: Qiao Kong, Amael Obliger, Minliang Lai, Mengyu Gao, David T. Limmer | Summary: Halide perovskites have attracted increasing research attention regarding their outstanding optoelectronic applications. Owing to its low activation energy, ion migration is implicated in the long-term stability and many unusual transport behaviors of halide perovskite […]


Continue.. Solid-state ionic rectification in perovskite nanowire heterostructures

Predicting the long-term stability of compact multiplanet systems

Kavli Affiliate: David Spergel | First 5 Authors: Daniel Tamayo, Miles Cranmer, Samuel Hadden, Hanno Rein, Peter Battaglia | Summary: We combine analytical understanding of resonant dynamics in two-planet systems with machine learning techniques to train a model capable of robustly classifying stability in compact multi-planet systems over long timescales of $10^9$ orbits. Our Stability […]


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Plasma Diagnostics of the Supernova Remnant N132D Using Deep XMM-Newton Observations with the Reflection Grating Spectrometer

Kavli Affiliate: Eric D. Miller | First 5 Authors: Hitomi Suzuki, Hiroya Yamaguchi, Manabu Ishida, Hiroyuki Uchida, Paul P. Plucinsky | Summary: We present XMM-Newton observations of N132D, the X-ray brightest supernova remnant (SNR) in the Large Magellanic Cloud (LMC), using the Reflection Grating Spectrometer (RGS) that enables high-resolution spectroscopy in the soft X-ray band. […]


Continue.. Plasma Diagnostics of the Supernova Remnant N132D Using Deep XMM-Newton Observations with the Reflection Grating Spectrometer

Explainable Recommendation via Interpretable Feature Mapping and Evaluation of Explainability

Kavli Affiliate: Li Xin Li | First 5 Authors: Deng Pan, Xiangrui Li, Xin Li, Dongxiao Zhu, | Summary: Latent factor collaborative filtering (CF) has been a widely used technique for recommender system by learning the semantic representations of users and items. Recently, explainable recommendation has attracted much attention from research community. However, trade-off exists […]


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Imaging moiré flat bands in 3D reconstructed WSe2/WS2 superlattices

Kavli Affiliate: Michael F. Crommie | First 5 Authors: Hongyuan Li, Shaowei Li, Mit H. Naik, Jingxu Xie, Xinyu Li | Summary: Moir’e superlattices in transition metal dichalcogenide (TMD) heterostructures can host novel correlated quantum phenomena due to the interplay of narrow moir’e flat bands and strong, long-range Coulomb interactions1-5. However, microscopic knowledge of the […]


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Unknown I.I.D. Prophets: Better Bounds, Streaming Algorithms, and a New Impossibility

Kavli Affiliate: Felix Fischer | First 5 Authors: José Correa, Paul Dütting, Felix Fischer, Kevin Schewior, Bruno Ziliotto | Summary: A prophet inequality states, for some $alphain[0,1]$, that the expected value achievable by a gambler who sequentially observes random variables $X_1,dots,X_n$ and selects one of them is at least an $alpha$ fraction of the maximum […]


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Physics Successfully Implements Lagrange Multiplier Optimization

Kavli Affiliate: Eli Yablonovitch | First 5 Authors: Sri Krishna Vadlamani, Tianyao Patrick Xiao, Eli Yablonovitch, , | Summary: Optimization is a major part of human effort. While being mathematical, optimization is also built into physics. For example, physics has the principle of Least Action, the principle of Minimum Entropy Generation, and the Variational Principle. […]


Continue.. Physics Successfully Implements Lagrange Multiplier Optimization

Physics Successfully Implements Lagrange Multiplier Optimization

Kavli Affiliate: Eli Yablonovitch | First 5 Authors: Sri Krishna Vadlamani, Tianyao Patrick Xiao, Eli Yablonovitch, , | Summary: Optimization is a major part of human effort. While being mathematical, optimization is also built into physics. For example, physics has the principle of Least Action, the principle of Minimum Entropy Generation, and the Variational Principle. […]


Continue.. Physics Successfully Implements Lagrange Multiplier Optimization