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Displaying 6401 - 6425 of 74083

Basic Metrology for 2020

April 30, 2020
Author(s)
Stephan Schlamminger, Richard Davis
2019 was a big year for Metrology. The international system of units was revised on World Metrology Day, May 20th, that year [1]. What will 2020 bring? In this article we discuss five promising advances that we have on a watchlist for 2020. First, we

Proceedings of the 11th Model-Based Enterprise Summit (MBE 2020)

April 30, 2020
Author(s)
Thomas D. Hedberg Jr., Mark G. Carlisle
The National Institute of Standards and Technology (NIST) hosted the eleventh installment of the Model-Based Enterprise Summit (MBE 2020) on March 31 through April 2, 2020 in Gaithersburg, Maryland. The MBE 2020 witnessed another year-over-year

Single-Photon Sources: Approaching the Ideal through Multiplexing

April 30, 2020
Author(s)
Alan L. Migdall, Evan Meyer-Scott, Christine Silberhorn
We review the rapid recent progress in single-photon sources based on multiplexing multiple probabilistic photon-creation events. Such multiplexing allows higher single-photon probabilities and lower contamination from higher-order photon states. We study

Survey of Drone Usage in Public Safety Agencies

April 30, 2020
Author(s)
Hien V. Nguyen, Terese W. Manley, Kamel S. Saidi
The Public Safety Communications Research (PSCR) Division at the National Institute of Standards and Technology (NIST) conducted a survey to explore ways in which drones, or Unmanned Aircraft Systems (UAS), are currently being used in public safety

Using Text Visualization to aid Analysis of Machine Maintenance Logs

April 30, 2020
Author(s)
Michael P. Brundage, Senthil K. Chandrasegaran, Xiaoyu Zhang, Kwan-Liu Ma
Maintenance and error logs for machines in manufacturing organizations are typically written as informal notes by operators or technicians working on the machines. These logs are written using a combination of common language and internally-used

2020 Numisheet benchmark study uniaxial tensile tests summary

April 29, 2020
Author(s)
Evan Rust, William E. Luecke, Mark Iadicola
This report describes the test equipment, process, analysis, and data file formats for the 2020 Numisheet benchmark study tensile testing of the four materials associated with the Numisheet conference benchmarks. The four materials include two steel alloys

Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence

April 29, 2020
Author(s)
R. T. Sutherland, Raghavendra Srinivas, Shaun C. Burd, Hannah M. Knaack, Andrew C. Wilson, David J. Wineland, Dietrich Leibfried, David T. Allcock, Daniel Slichter, S. B. Libby
The dominant error sources for state-of-the-art implementations of laser-free trapped-ion entangling gates are decoherence of the qubit state and motion. The gate error from these decoherence mechanisms can be suppressed with additional control fields, or
Displaying 6401 - 6425 of 74083