Simons Observatory Microwave SQUID Multiplexing Readout — Cryogenic RF Amplifier and Coaxial Chain Design

Kavli Affiliate: Shawn Henderson | First 5 Authors: Mayuri Sathyanarayana Rao, Maximiliano Silva-Feaver, Aamir Ali, Kam Arnold, Peter Ashton | Summary: The Simons Observatory (SO) is an upcoming polarization-sensitive Cosmic Microwave Background (CMB) experiment on the Cerro Toco Plateau (Chile) with large overlap with other optical and infrared surveys (e.g., DESI, LSST, HSC). To enable […]


Continue.. Simons Observatory Microwave SQUID Multiplexing Readout — Cryogenic RF Amplifier and Coaxial Chain Design

Towards windproofing LIGO: Reducing the effect of wind-driven floor tilt by using rotation sensors in active seismic isolation

Kavli Affiliate: Brian Lantz | First 5 Authors: Michael P. Ross, Krishna Venkateswara, Conor Mow-Lowry, Sam Cooper, Jim Warner | Summary: Modern gravitational-wave observatories require robust low-frequency active seismic isolation in order to keep the interferometer at its ideal operating conditions. Seismometers are used to measure both the motion of the ground and isolated platform. […]


Continue.. Towards windproofing LIGO: Reducing the effect of wind-driven floor tilt by using rotation sensors in active seismic isolation

Reply to Robinson and Michaud, arXiv:2002.08893

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Noah Kurinsky, Daniel Baxter, Yonatan Kahn, Gordan Krnjaic, Peter Abbamonte | Summary: We respond to Robinson and Michaud’s (RM) comment (arXiv:2002.08893) on our recent preprint arXiv:2002.06937, in which we discuss recent excesses in low-threshold dark matter searches, and offer a potential unifying dark matter interpretation. We thank […]


Continue.. Reply to Robinson and Michaud, arXiv:2002.08893

Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances and Weak Lensing

Kavli Affiliate: Eli Rykoff | First 5 Authors: DES Collaboration, Tim Abbott, Michel Aguena, Alex Alarcon, Sahar Allam | Summary: We perform a joint analysis of the counts and weak lensing signal of redMaPPer clusters selected from the Dark Energy Survey (DES) Year 1 dataset. Our analysis uses the same shear and source photometric redshifts […]


Continue.. Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances and Weak Lensing

Quantum Detection using Magnetic Avalanches in Single-Molecule Magnets

Kavli Affiliate: Giorgio Gratta | First 5 Authors: Hao Chen, Rupak Mahapatra, Glenn Agnolet, Michael Nippe, Minjie Lu | Summary: The detection of a single quantum of energy with high efficiency and low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optical and infra-red photons to enabling the […]


Continue.. Quantum Detection using Magnetic Avalanches in Single-Molecule Magnets

A Dark Matter Interpretation of Excesses in Multiple Direct Detection Experiments

Kavli Affiliate: Noah Kurinsky | First 5 Authors: , , , , | Summary: We present a novel unifying interpretation of excess event rates observed in several dark matter direct-detection experiments that utilize single-electron threshold semiconductor detectors. Despite their different locations, exposures, readout techniques, detector composition, and operating depths, these experiments all observe statistically significant […]


Continue.. A Dark Matter Interpretation of Excesses in Multiple Direct Detection Experiments

Optimization of Software on High Performance Computing Platforms for the LUX-ZEPLIN Dark Matter Experiment

Kavli Affiliate: Maria Elena Monzani | First 5 Authors: Venkitesh Ayyar, Wahid Bhimji, Maria Elena Monzani, Andrew Naylor, Simon Patton | Summary: High Energy Physics experiments like the LUX-ZEPLIN dark matter experiment face unique challenges when running their computation on High Performance Computing resources. In this paper, we describe some strategies to optimize memory usage […]


Continue.. Optimization of Software on High Performance Computing Platforms for the LUX-ZEPLIN Dark Matter Experiment