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Displaying 26 - 50 of 74034

Alternative Fundamental Equation of State for Fluid Carbon Dioxide

February 2, 2026
Author(s)
Eric Lemmon, Allan Harvey, Robert Hellmann
We present a new fundamental equation of state for fluid carbon dioxide, which is an alternative to the current reference formulation published by Span and Wagner in 1996. The equation of state is formulated as the Helmholtz energy as a function of

Electrical interconnects for silicon spin qubits

February 2, 2026
Author(s)
Christopher White, Anthony Sigillito, Michael Gullans
Scalable spin qubit devices will likely require long-range qubit interconnects. We propose to create such an interconnect with a resistive topgate. The topgate is positively biased, to form a channel between the two dots; an end-to-end voltage difference

Patterns and gaps in co-benefit reporting in global adaptation research

January 30, 2026
Author(s)
Christina Gore, Caitlin Grady, Rithika Dulam, Dhanyasri Bolla, Anna Liu, Jennifer Helgeson
Adaptations to extreme weather events are increasing in prevalence across the globe. Adaptation actions can produce co-benefits, which are ancillary positive outcomes beyond the primary objectives of reducing risk and enhancing resilience. Despite growing

Bridging the Gap between Standards on Random Number Generation: Comparison of SP 800-90 Series and AIS 20/31

January 29, 2026
Author(s)
Elaine Barker, John Kelsey, Kerry McKay, Johannes Mittmann, Matthias Peter, Werner Schindler, Meltem Sonmez Turan
This report studies the cryptographic random number generation standards and guidelines written by BSI and NIST, namely AIS 20/31 and SP 800-90 Series. The aim of this report is to compare these publications, focusing on the similarities and differences of

DATA REQUIREMENTS FOR A DIGITAL TWIN OF A CNC MACHINE TOOL

January 29, 2026
Author(s)
Deogratias Kibira, Guodong Shao
Digital twins enable the intelligent operation of computer numerical control (CNC) machine tools from which a wide range of data can be collected using sensors and other Internet of Things (IoT) devices. Creating a valid digital twin for a specific purpose

The National Marine Mammal Tissue Bank Specimen Inventory Report

January 29, 2026
Author(s)
Jennifer Ness, Debra Ellisor, Jennifer Hoguet, Amanda Moors, Amanda Capuano, Rebecca Pugh
This report provides a brief background of the National Marine Mammal Tissue Bank (NMMTB), information on the composition of the collection, policies for specimen use, and links to a downloadable and searchable specimen inventory. The inventory covers

Wafer-Scale Micro-Knife Sealed Vacuum Cells for Quantum Devices

January 29, 2026
Author(s)
Megan Kelleher, Konrad Ziegler, Jeremy Robin, Lianxin Huang, Mitchel Button, Liam Mauck, Peter Brewer, Danny Kim, John Kitching, William McGehee, Travis Autry
Advanced integration technologies greatly enhance the prospects and reliability of practical quantum sensors, atomic clocks, and quantum information technologies. The performance and proliferation of these devices at chip-scale is contingent upon

Realization of two-dimensional discrete time crystals with anisotropic Heisenberg coupling

January 28, 2026
Author(s)
Eric Switzer, Niall Robertson, Nathan Keenan, Angel Rodriguez, Andrea D'Urbano, Bibek Pokharel, Talat Rahman, Oles Shtanko, Sergiy Zhuk, Nicolas Lorente
A discrete time crystal (DTC) is an out-of-equilibrium phase of matter that spontaneously breaks discrete time-translation symmetry. Previous studies have been limited to a set of models with Ising-like couplings - and mostly only in one dimension - thus

Lucky Packets and Network Time Protocol (NTP)

January 26, 2026
Author(s)
Jace Smuszkiewicz, Terrence Jones, Andrew Novick, Demetrios Matsakin
For users of the network time protocol (NTP), a "lucky packet" is defined as one which is returned back to the client with very short roundtrip travel time over the internet. In NTP the error budget of the time offset measurement is dominated by the

Scanned Squid Microscope with High-speed Electrical Connectivity

January 26, 2026
Author(s)
Ian Haygood, Bochao Xu, John Biesecker, Michael Schneider
We report on a cryogen-free scanned SQUID microscope operating at 4 K, with the capability of up to 40 RF (40 GHz) connections to a device under test. The system utilizes planar gradiometric SQUID loops which are fully shield except for a pair of pickup

Bootstrapping, autonomous testing, and initialization system for Si/Si$_x$Ge$_1-x}$ multi-quantum-dot devices

January 20, 2026
Author(s)
Tyler Kovach, Daniel Schug, Michael Wolfe, Evan MacQuarrie, Patrick Walsh, Jared Benson, Mark Friesen, Mark Eriksson, Justyna Zwolak
Semiconductor quantum dot (QD) devices have become central to advancements in spin-based quantum computing. However, the increasing complexity of modern QD devices makes calibration and control---particularly at elevated temperatures---a bottleneck to

NIST First Call for Multi-Party Threshold Schemes

January 20, 2026
Author(s)
Luis Teixeira D'Aguiar Norton Brandao, Rene Peralta
This document calls for public submissions of multi-party threshold schemes, and other related crypto-systems, to support the United States National Institute of Standards and Technology (NIST) in gathering a public body of reference materials on advanced

The Strategic Role of 2D Nanomaterials in Grid Modernization

January 16, 2026
Author(s)
Matthew Glasscott, James Burgess, Peter Byrley, Maria Fernanda Campa, Mark Griep, Alexander Kirk, Stephanie Mack, Birgit Schwenzer, Ryan Welch, Elisabeth Mansfield
Two-dimensional (2D) nanomaterials are poised to catalyze the modernization of today's electrical grid into the Resilient Smart Grid (RSG) of the future. This Perspective explores the role of existing and projected 2D nanomaterial-enabled technologies in

Burning Rates of Individual Firebrands on Shredded Paper Beds

January 15, 2026
Author(s)
Savannah Wessies, Jiann Yang
Every year, homes and buildings are destroyed by wildland fires. In most situations, the structures are ignited by firebrands landing on a combustible surface within or in the direct vicinity of the structure. The mass burning rate, which is directly
Displaying 26 - 50 of 74034
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