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Search Publications

NIST Authors in Bold

Displaying 1401 - 1425 of 2915

Entangled States of Atomic Ions for Quantum Metrology and Computation

January 1, 1996
Author(s)
David J. Wineland, C Monroe, D M. Meekhof, B E. King, Dietrich G. Leibfried, Wayne M. Itano, James C. Bergquist, D J. Berkeland, John J. Bollinger, J D. Miller
A single trapped 9Be+ ion is used to investigate Jaynes-Cummings dynamics for a two-level atomic system coupled to harmonic atomic motion. We create and investigate nonclassical states of motion including "Schrödinger-cat" states. A fundamental quantum

The Interpretation and Use of S-Parameters in Lossy Lines

November 1, 1990
Author(s)
Dylan F. Williams, Roger Marks
Although a fundamental parameter of transmission lines, the characteristic impedance is difficult to measure accurately. We suggest a method by which it may be easily determined from a measurement of the propagation constant. The method is based on a

The interactive effect of heat and mass transport on water condensation in the gas diffusion layer of a proton exchange membrane fuel cell

December 31, 2020
Author(s)
Po-Ya A. Chuang, Md A. Rahman, Felipe Mojica, Daniel S. Hussey, David L. Jacobson, Jacob LaManna
Despite recent advancement in fuel cell technology, significant challenges remain in achieving high power density operation to meet the stringent targets of performance, durability and cost. This is due to the lack of fundamental understanding in

Hysteresis in Quantized Superfluid Atomtronic Circuit

February 14, 2014
Author(s)
Stephen P. Eckel, Jeffrey Lee, Fred Jendrzejewski, Noel Murray, Charles W. Clark, Christopher J. Lobb, William D. Phillips, Edwards Mark, Gretchen K. Campbell
Atomtronics is an emerging interdisciplinary field that seeks new functionality by creating devices and circuits where ultra-cold atoms play a role analogous to the electrons in electronics. Hysteresis in atomtronic circuits may prove to be a crucial

Possibilities, Limits, and Tradeoffs for Refrigerants in the Vapor Compression Cycle

October 29, 2012
Author(s)
Mark O. McLinden, Andrei F. Kazakov, J S. Brown, Piotr A. Domanski, Jae H. Heo
We explore the possibilities for refrigerants having low global warming potential (GWP) using two distinct, but complimentary, approaches. In the first approach, we evaluate the effect of a refrigerant’s fundamental thermodynamic parameters on its

Precision Engineering For Gravitational Experiments

October 10, 2022
Author(s)
Stephan Schlamminger, Leon Chao, Vincent Lee, David B. Newell, Jon Pratt, Clive Speake
Four fundamental forces, or technically more correct interactions, are known in physics. The gravitational force is one of them and is a mysterious one. Gravity has an infinite range, just like the electromagnetic interaction. However, in contrast to

Scalability of precision design principles for machines and instruments

July 16, 2021
Author(s)
Jose Yague-Fabra, Wei Gao, Andreas Archenti, Ed Morse, Alkan Donmez
The implementation of precision engineering principles in the design of precision systems is fundamental to achieve high accuracy. Although these principles may be independent of the system working range, their implementation is not. The working range, the

Guide to LTE Security

December 21, 2017
Author(s)
Jeffrey A. Cichonski, Joshua M. Franklin, Michael J. Bartock
… technologies. This document serves as a guide to the fundamentals of how LTE networks operate and explores the …

Experiments with highly-ionized atoms in unitary Penning traps

August 14, 2015
Author(s)
Shannon Hoogerheide, Aung Naing, Joan M. Dreiling, Samuel Brewer, Nicholas D. Guise, Joseph Tan
Highly-ionized atoms with special properties have been proposed for interesting applications, including potential candidates for a new generation of optical atomic-clocks at the 1 part in 1019 level of precision, quantum-information processing, and tests

A Glowing Future for Lab on a Chip Testing Standards

June 28, 2012
Author(s)
Samuel M. Stavis
Testing standards are more fundamental from a metrological perspective and less controversial from an industrial perspective than product standards, representing a path of less resistance towards the standardization and commercialization of lab on a chip

Coalescence of Single Photons Emitted by Disparate Single Photon Sources: The Example of InAs Quantum Dots and Parametric Down-Conversion Sources

October 5, 2011
Author(s)
Sergey V. Polyakov, Andreas Muller, Alexander E. Ling, Natalia B. Rutter, Edward B. Flagg, Edward Van Keuren, Alan L. Migdall, Glenn S. Solomon
In quantum mechanics, particles in identical states are indistinguishable, giving rise to effects with no classical analog. Single photons produced by fundamentally dissimilar physical processes will in general not be indistinguishable. We show how photons

The Gaseous Electronics Conference radio-frequency reference cell: a defined parallel-plate radio-frequency system for experimental and theoretical studies of plasma processing discharges

January 1, 1994
Author(s)
P J. Hargis, Jr, K E. Greenberg, P A. Miller, J B. Gerardo, J R. Torczynski, M E. Riley, G A. Hebner, J R. Roberts, James K. Olthoff, J R. Whet-stone, R R. Van brunt, M A. Sobolewski, H M. Anderson, M P. Splichal, J L. Mock, P Bletzinger, A Garscadden, R A. Gottscho, G Selwyn, M Dalvie, J E. Heidenreich, J W. Butter-baugh, M L. Brake, M L. Passow, J Pender, A Lujan, M E. Elta, D Graves, H H. Sawin, M J. Kuschner, J T. Verdeyen, R Horwath, T R. Turner
… radio-frequency reference cell: a defined parallel-plate radio-frequency system for experimental and …

Fire as a Building Load

February 19, 2017
Author(s)
Richard W. Bukowski
The concept of designing buildings to resist loads is fundamental to the design and regulatory process. Fire has traditionally been addressed differently because fires are difficult to describe in the same way as other building loads. This paper proposes a

Release of NIST SP 800-147B, BIOS Protection Guidelines for Servers

October 29, 2014
Author(s)
Andrew R. Regenscheid, Larry Feldman, Gregory A. Witte
Modern computers rely on fundamental system firmware, commonly known as the Basic Input/Output System (BIOS), to enable system components to communicate and work together. The BIOS is typically developed by both original equipment manufacturers (OEMs) and

Shear Induced Tilt Order in Polymer Blends

October 16, 2008
Author(s)
Erik K. Hobbie, Haonan Wang, H Jeon, H W. Kim, D Stout, Charles C. Han
Optical studies of viscoelastic emulsions under simple shear flow reveal long-range spatial correlation in the orientation of the deformed domains. As the volume fraction of droplets increases, the tilt angle between the direction of orientation and the

Extraction of Sheet Resistance and Linewidth from All-Copper ECD Test-Structures Fabricated from Silicon Preforms

March 22, 2007
Author(s)
Byron J. Shulver, Andrew S. Bunting, Alan Gundlach, Les I. Haworth, Alan W. Ross, A. J. Smith, Anthony J. Snell, J. T. Stevenson, Anthony Walton, Michael W. Cresswell, Richard A. Allen
Test Structures for the extraction of Electrical Critical Dimensions (ECD) and having all-copper features with no barrier metal films have been fabricated. The advantage of this approach is that electrical measurements provide a non-destructive method for
Displaying 1401 - 1425 of 2915
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