Optical design of diffraction-limited X-ray telescopes

Posted by klaurent MIT

Kavli Affiliate: Mark Schattenburg | Summary:Astronomical imaging with micro-arcsecond ($μ$as) angular resolution could enable breakthrough scientific discoveries. Previously-proposed $μ$as X-ray imager designs have been interferometers with limited effective collecting area. Here we describe X-ray telescopes achieving diffraction-limited performance over a wide energy band with large effective area, employing a nested-shell architecture with grazing-incidence mirrors, while […]


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SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper-CCD

Posted by klaurent Chicago

Kavli Affiliate: Michael Crisler | Summary:We present the first direct-detection search for eV-to-GeV dark matter using a new ~2-gram high-resistivity Skipper-CCD from a dedicated fabrication batch that was optimized for dark-matter searches. Using 24 days of data acquired in the MINOS cavern at the Fermi National Accelerator Laboratory, we measure the lowest rates in silicon […]


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LAI-Net: Local-Ancestry Inference with Neural Networks

Posted by klaurent Berkeley

Kavli Affiliate: Carlos Bustamante | First 5 Authors: Daniel Mas Montserrat, Carlos Bustamante, Alexander Ioannidis, , | Summary: Local-ancestry inference (LAI), also referred to as ancestry deconvolution, provides high-resolution ancestry estimation along the human genome. In both research and industry, LAI is emerging as a critical step in DNA sequence analysis with applications extending from […]


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The germanium quantum information route

Posted by klaurent Delft

Kavli Affiliate: Menno Veldhorst | First 5 Authors: Giordano Scappucci, Christoph Kloeffel, Floris A. Zwanenburg, Daniel Loss, Maksym Myronov | Summary: In the worldwide endeavor for disruptive quantum technologies, germanium is emerging as a versatile material to realize devices capable of encoding, processing, or transmitting quantum information. These devices leverage special properties of the germanium […]


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Fingerprints of the Strong Interaction between Monolayer MoS2 and Gold

Posted by klaurent Cornell

Kavli Affiliate: Hector D. Abruna | First 5 Authors: Matej Velicky, Alvaro Rodriguez, Milan Bousa, Andrey V. Krayev, Martin Vondracek | Summary: Gold-mediated exfoliation of MoS2 has attracted considerable interest in the recent years. A strong interaction between MoS2 and Au facilitates preferential production of centimeter-sized monolayer MoS2 with near-unity yield and provides a heterostructure […]


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Fingerprints of the Strong Interaction between Monolayer MoS2 and Gold

Posted by klaurent Cornell

Kavli Affiliate: Hector D. Abruna | Summary:Gold-mediated exfoliation of MoS2 has attracted considerable interest in the recent years. A strong interaction between MoS2 and Au facilitates preferential production of centimeter-sized monolayer MoS2 with near-unity yield and provides a heterostructure system noteworthy from a fundamental standpoint. However, little is known about the detailed nature of the […]


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Atomic line defects and topological superconductivity in unconventional superconductors

Posted by dbos UCAS

Kavli Affiliate: Fuchun Zhang | First 5 Authors: Yi Zhang, Kun Jiang, Fuchun Zhang, Jian Wang, Ziqiang Wang | Summary: Topological superconductors (TSCs) are correlated quantum states with simultaneous off-diagonal long-range order and nontrivial topological invariants. They produce gapless or zero energy boundary excitations, including Majorana zero modes and chiral Majorana edge states with topologically […]


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Defect CFT in the 6d (2,0) theory from M2 brane dynamics in AdS$_7 times$S$^4$

Posted by klaurent UCAS

Kavli Affiliate: Xinan Zhou | First 5 Authors: Nadav Drukker, Simone Giombi, Arkady A. Tseytlin, Xinan Zhou, | Summary: Surface operators in the 6d (2,0) theory at large $N$ have a holographic description in terms of M2 branes probing the AdS$_7 times S^4$ M-theory background. The most symmetric, 1/2-BPS, operator is defined over a planar […]


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Dendrite Net: A White-Box Module for Classification, Regression, and System Identification

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Gang Liu, Jing Wang, , , | Summary: The simulation of biological dendrite computations is vital for the development of artificial intelligence (AI). This paper presents a basic machine learning algorithm, named Dendrite Net or DD, just like Support Vector Machine (SVM) or Multilayer Perceptron (MLP). DD’s […]


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High dynamic range CdTe mixed-mode pixel array detector (MM-PAD) for kilohertz imaging of hard x-rays

Posted by klaurent Cornell

Kavli Affiliate: Sol M. Gruner | First 5 Authors: Hugh T. Philipp, Mark W. Tate, Katherine S. Shanks, Prafull Purohit, Sol M. Gruner | Summary: A hard x-ray, high-speed, high dynamic range scientific x-ray imager is described. The imager is based on the mixed-mode pixel array detector (MM-PAD) readout chip coupled to a 750 micron […]


Continue.. High dynamic range CdTe mixed-mode pixel array detector (MM-PAD) for kilohertz imaging of hard x-rays