Large-Scale Gravitational Lens Modeling with Bayesian Neural Networks for Accurate and Precise Inference of the Hubble Constant

Posted by klaurent Stanford

Kavli Affiliate: Philip J. Marshall | First 5 Authors: Ji Won Park, Sebastian Wagner-Carena, Simon Birrer, Philip J. Marshall, Joshua Yao-Yu Lin | Summary: We investigate the use of approximate Bayesian neural networks (BNNs) in modeling hundreds of time-delay gravitational lenses for Hubble constant ($H_0$) determination. Our BNN was trained on synthetic HST-quality images of […]


Continue.. Large-Scale Gravitational Lens Modeling with Bayesian Neural Networks for Accurate and Precise Inference of the Hubble Constant

The long-term evolution of main-sequence binaries in DRAGON simulations

Posted by klaurent Peking

Kavli Affiliate: Rainer Spurzem | First 5 Authors: Qi Shu, Xiaoying Pang, Francesco Flammini Dotti, M. B. N. Kouwenhoven, Manuel Arca Sedda | Summary: We present a comprehensive investigation of main-sequence (MS) binaries in the DRAGON simulations, which are the first one-million particles direct $N$-body simulations of globular clusters. We analyse the orbital parameters of […]


Continue.. The long-term evolution of main-sequence binaries in DRAGON simulations

Lynx grating spectrometer design: Optimizing chirped transmission gratings

Posted by klaurent MIT

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Hans Moritz Günther, Ralf K. Heilmann, , , | Summary: Lynx is one of four large-mission concept studies for NASA’s 2020 Decadal survey. The design reference mission includes an X-ray grating spectrometer (XGS) based on critical-angle transmission (CAT) gratings. In the past we studied different grating […]


Continue.. Lynx grating spectrometer design: Optimizing chirped transmission gratings

Ray-tracing a small orbital mission for soft-X-ray polarimetry

Posted by klaurent MIT

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Hans Moritz Günther, Herman L. Marshall, Alan Garner, , | Summary: X-ray polarimetry is still largely uncharted territory. With the upcoming launch of IXPE, we will learn a lot more about X-ray polarization at energies above 2 keV, but so far no current or accepted mission […]


Continue.. Ray-tracing a small orbital mission for soft-X-ray polarimetry

Sideband transitions in a two-mode Josephson circuit driven beyond the rotating wave approximation

Posted by klaurent Delft

Kavli Affiliate: Gary A. Steele | First 5 Authors: Byoung-moo Ann, Wouter Kessels, Gary. A. Steele, , | Summary: Driving quantum systems periodically in time plays an essential role in the coherent control of quantum states. The rotating wave approximation (RWA) is a good approximation technique for weak and nearly-resonance driven fields. However, these experiments […]


Continue.. Sideband transitions in a two-mode Josephson circuit driven beyond the rotating wave approximation

Incorporating Hidden Layer representation into Adversarial Attacks and Defences

Posted by klaurent Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Haojing Shen, Sihong Chen, Ran Wang, Xizhao Wang, | Summary: In this paper, we propose a defence strategy to improve adversarial robustness by incorporating hidden layer representation. The key of this defence strategy aims to compress or filter input information including adversarial perturbation. And this defence strategy […]


Continue.. Incorporating Hidden Layer representation into Adversarial Attacks and Defences

Membrane Nanodomains Homeostasis During Propofol Anesthesia as Function of Dosage and Temperature

Posted by klaurent MIT

Kavli Affiliate: Michael Zucker | First 5 Authors: Weixiang Jin, Michael Zucker, Arnd Pralle, , | Summary: Some anesthetics bind and potentiate gamma-aminobutyric-acid-type receptors, but no universal mechanism for general anesthesia is known. Furthermore, often encountered complications such as anesthesia induced amnesia are not understood. General anesthetics are hydrophobic molecules easily dissolving into lipid bilayers. […]


Continue.. Membrane Nanodomains Homeostasis During Propofol Anesthesia as Function of Dosage and Temperature

Automatic coding of students’ writing via Contrastive Representation Learning in the Wasserstein space

Posted by klaurent MIT

Kavli Affiliate: Eric Miller | First 5 Authors: Ruijie Jiang, Julia Gouvea, David Hammer, Eric Miller, Shuchin Aeron | Summary: Qualitative analysis of verbal data is of central importance in the learning sciences. It is labor-intensive and time-consuming, however, which limits the amount of data researchers can include in studies. This work is a step […]


Continue.. Automatic coding of students’ writing via Contrastive Representation Learning in the Wasserstein space

Two young planetary systems around field stars with ages between 20-320 Myr from TESS

Posted by klaurent MIT

Kavli Affiliate: Andrew M. Vanderburg | First 5 Authors: George Zhou, Samuel N. Quinn, Jonathan Irwin, Chelsea X. Huang, Karen A. Collins | Summary: Planets around young stars trace the early evolution of planetary systems. We report the discovery and validation of two planetary systems with ages $lesssim 300$ Myr from observations by the Transiting […]


Continue.. Two young planetary systems around field stars with ages between 20-320 Myr from TESS