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Search Publications

NIST Authors in Bold

Displaying 2851 - 2875 of 143726

Lower Bounds on Quantum Annealing Times

April 5, 2023
Author(s)
Luis Pedro Garcia-Pintos, Lucas Brady, Jacob Bringewatt, Yi-Kai Liu
The adiabatic theorem provides sufficient conditions for the time needed to prepare a target ground state. While it is possible to prepare a target state much faster with more general quantum annealing protocols, rigorous results beyond the adiabatic

Towards Global Parameter Estimation Exploiting Reduced Data Sets

April 5, 2023
Author(s)
Susanne Sass, Angelos Tsoukalas, Ian Bell, Dominik Bongartz, Jaromil Najman, Alexander Mitsos
We focus on deterministic global optimization (DGO) methods for solving nonconvex parameter estimation problems. In estimation problems, realistic and accurate solutions require a fitting against huge measurement data sets often. However, many of the

NIST Time and Frequency Bulletin

April 4, 2023
Author(s)
Kelsey Rodriguez
The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services.

Specification for Certification Testing of Contactless Fingerprint Acquisition Devices, v1.0

April 4, 2023
Author(s)
Shahram Orandi, John M. Libert, John Grantham, Kenneth Ko, Bruce Bandini, Craig I. Watson
This specification builds upon the protocols and metrics established in NIST Special Publication 500-336 and defines procedures for the evaluation and certification of contactless fingerprint acquisition devices with respect to certified legacy contact

Symmetric time-division-multiplexed SQUID readout with two-layer switches for future TES observatories

April 4, 2023
Author(s)
Malcolm Durkin, Scott Backhaus, Simon Bandler, James Chervenak, Ed Denison, W.Bertrand (Randy) Doriese, Johnathon Gard, Gene C. Hilton, Richard Lew, Tammy Lucas, Carl D. Reintsema, Dan Schmidt, Stephen Smith, Joel Ullom, Leila R. Vale, Michael Vissers, Nicholas Wakeham
Time-division multiplexing (TDM) of transition-edge-sensor (TES) microcalorimeters is being developed as the readout tech-nology for the Athena X-ray integral field unit (X-IFU) and is under consideration for future TES-bolometer missions like CMB-S4. We

Application of Indoor CO2 in Response to the Pandemic

April 3, 2023
Author(s)
Andrew K. Persily, Oluwatobi Oke
In response to the COVID-19 pandemic, there have been many recommendations to monitor indoor CO2 concentrations. However, the technical basis for these recommendations and stated concentration limits are not always clear. This article discusses the

Deep Learning for Path Loss Prediction at 7 GHz in Urban Environment

April 3, 2023
Author(s)
Thao T. Nguyen, Nadia Yoza Mitsuishi, Raied Caromi
In the 6 GHz spectrum sharing band, unlicensed devices are managed by automated frequency coordination (AFC) systems to protect incumbent services from interference. Thus, it is important to select accurate propagation models for interference calculation

Integrating planar photonics for multi-beam generation and atomic clock packaging on chip

April 3, 2023
Author(s)
Chad Ropp, Wenqi Zhu, Alexander Yulaev, Daron Westly, Gregory Simelgor, Akash Rakholia, William Lunden, Dan Sheredy, Martin Boyd, Scott Papp, Amit Agrawal, Vladimir Aksyuk
The commercialization of atomic technologies requires replacing laboratory-scale laser setups with compact and manufacturable optical platforms. Complex arrangements of free-space beams can be generated on chip through a combination of integrated photonics
Displaying 2851 - 2875 of 143726
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