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Search Publications

NIST Authors in Bold

Displaying 1151 - 1175 of 74220

Constraints on Gaussian Error Channels and Measurements for Quantum Communication

April 10, 2023
Author(s)
Alexander T. Kwiatkowski, Ezad Shojaee, Sristy Agrawal, Akira Kyle, Curtis Rau, Scott Glancy, Emanuel Knill
Joint Gaussian measurements of two quantum systems are important for quantum communication between remote parties and are often used in continuous-variable teleportation or entanglement-swapping protocols. Many of the errors in real-world implementations

Quantum back-action limits in dispersively measured Bose-Einstein condensates

April 8, 2023
Author(s)
Ian Spielman, Emine Altuntas
A fundamental tenet of quantum mechanics is that measurements change a system's wavefunction to that most consistent with the measurement outcome, even if no observer is present. Weak measurements produce only limited information about the system, and as a

The optical and magnetic properties of Ru-doped hybrid improper perovskite Ca3Mn2O7 via experimental and first-principles calculations

April 7, 2023
Author(s)
Kejia Yuan, Hanwen Zhang, Tianqi Xiao, Zhiyan Li, Winnie Wong-Ng, Wei Zhou, Chao Wang, Shouyu Wang, Weifang Liu
The quasi-2D Ruddlesden-Popper layered perovskites with single-phase multiferroicity have attracted much attention in recent magnetoelectric memory applications. We have systematically investigated the optical and magnetic properties of Ru-doped hybrid

Berlin Statement on Legacy and Emerging Contaminants in Polar Regions

April 6, 2023
Author(s)
Rebecca Pugh, Ralf Ebinghaus, Elena Barbaro, Susan Bengtson Nash, Cristina de Avila, Cynthia de Wit, Valeria Dulio, Janine Felden, Antonio Franco, Juergen Gandrass, Marco Grotti, Heike Herata, Kevin Hughes, Morten Jartun, Hanna Joerss, Roland Kallenborn, Jan Koschorreck, Anette Kuster, Rainer Lohmann, Zhanyun Wang, Matthew MacLeod, Caren Rauert, Jaroslav Slobodnik, Roxana Suhring, Katrin Vorkamp, Zhiyong Xie
Polar regions should be given greater consideration with respect to chemical monitoring, chemicals risk assessment, and management, consistent with requirements of the precautionary principle. Protecting the vulnerable polar environments requires (i)

Security Segmentation in a Small Manufacturing Environment

April 6, 2023
Author(s)
Michael Powell, John Hoyt, Aslam Sherule, Lynette Wilcox
Manufacturers are increasingly targeted in cyber-attacks. Small manufacturers are particularly vulnerable due to limitations in staff and resources to operate facilities and manage cybersecurity. Security segmentation is a cost-effective and efficient

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
Displaying 1151 - 1175 of 74220